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In most fishes, the number of offspring increases with maternal body size. Although this size-fecundity relationship often varies among species as a result of the coevolution of life-history traits, the genetic basis of such size-fecundity relationships remains unclear. We explored the genetic basis underlying this size-fecundity relationship in two small medaka species, Oryzias latipes and O. sakaizumii. Our findings showed that O. sakaizumii has a higher fecundity than O. latipes, and quantitative trait locus analysis using interspecific F 2 hybrids showed that chromosome 23 is linked to the size-fecundity relationship. In particular, the genes igf1 and lep-b in this region are known to be associated with life-history traits, including somatic growth, gonad maturation, and progeny numbers in various taxa. Because O. sakaizumii is distributed at higher latitudes and has a shorter spawning season than O. latipes in the wild, we propose that the relatively high fecundity observed in O. sakaizumii is an adaptation to high latitudes. We also discuss the potential ecological ramifications associated with the evolution of increased fecundity in this species., (© 2024 John Wiley & Sons Ltd.)

Background: Bacterial indoor air load refers to the level of bacteria within and around dwellings and other structures. Pathogens, bacterial cell fragments, and bacterial organisms' byproducts can all pose major issues indoors, especially in prison inmate cells. However, there is lack of data on bacterial load and contributing factors in the East Hararghe zone and Harari regional state. The lack of studies on microbiological indoor air quality in prisons with contributing factors will therefore be filled by this investigation., Objectives: The study aimed to assess bacterial indoor air load and contributing factors in prison inmate cells from October 1 to October 30, 2020., Methodology: An institutional cross-sectional study was employed. All of the prisons in the East Hararghe zone and the Harari regional state served as the study's and source population. 62 prison cells were used in the investigation. Samples were obtained using the passively settling plate technique. The data were evaluated through the use of SPSS statistical software, Excel, and the statistical procedures of ANOVA, correlation, and chi-square test., Results: The maximum and minimum bacterial loads, were recorded at 8:00 am (3027 CFU/m3) and 2:00 pm (1048 (CFU/m3) respectively. The correlation between the temperature and bacterial load was strongly positive (r = 0.680, p = 0.047), and the correlation of the moisture content and bacterial load was strongly negative  (r = -0.671, p = 0.039)., Conclusion: The levels of bacteria were higher than the guideline (2000 CFU/m3). While the relative humidity of indoor air was negatively correlated with bacterial load, temperature and bacterial load were significantly positively correlated. Harari regional state and East Hararghe zone prison commissions should be alarmed to alleviate these problems. The building standards need to be completely updated to the latest standards.

Plastic pollution poses a significant threat to the environment and human health on a global level. This study aimed to investigate plastic pollution in the Harari region of Ethiopia. The result indicated that 62% of respondents demonstrated good knowledge about plastic waste, and 59% of them perceived plastic waste as harmful. Polyethylene terephthalate, high-density polyethylene, polyvinyl chloride, low-density polyethylene, polypropylene, polystyrene, and polycarbonates were the types of plastic waste identified. Being female (AOR = 1.82), aged 15-45 (AOR = 1.82), married (AOR = 1.83), and having families >3 (AOR = 2.15) were significantly positively associated with good plastic waste management practice. Being illiterate (AOR = 0.52), and having poor knowledge about plastic waste (AOR = 0.54) were significantly negatively associated with poor management practice. The findings indicated that the Harari region is prone to adverse health and environmental effects from plastic pollution. Policies restricting plastic use, training municipal waste collectors and health extension workers, and improving public awareness are indispensable.

Background: Inadequate water supply, poor sanitation and hygiene (WASH) facilities in schools, insufficient puberty education and a lack of hygienic menstrual hygiene management (MHM) items (absorbents) cause girls in developing countries like Ethiopia to view menstruation as shameful and uncomfortable. However, there was little evidence of female MHM practice and associated factors among secondary school girls in eastern Ethiopia., Objective: To assess MHM practice and associated factors among secondary school girls in eastern Ethiopia., Design: Institutional-based cross-sectional study design was conducted., Methods: A total of 473 secondary schoolgirls were selected using a stratified sampling technique. Data were collected using a self-administered structured questionnaire, double-entered to Epidata version 3.1 and exported to SPSS version 26 for analysis. Descriptive analysis was computed using frequency, percentage, mean and standard deviations. Multivariable logistic regression was applied to assess the association of the school water, sanitation and hygiene facilities with MHM. Adjusted odd ratio (AOR) with its 95% confidence interval was computed to show the strength of the association between dependent and independent variables. The goodness of fit of the model was tested by the Hosmer-Lemeshow goodness of fit test., Results: Out of 473 study participants, 72.93% of them (95% CI: 68.74-76.76) reported good MHM practices. The study also found that availability of continuous water supply (AOR = 2.40, 95% CI: (1.42-4.01)); types of toilet (AOR = 2.01, 95% CI: (1.20-3.40)), confined space (AOR = 3.02, 95% CI: (1.49-4.76)) and having females' toilets alone inside in the school (AOR = 2.70, 95% CI: (1.20-4.40)) were significantly associated with female students' good MHM practice., Conclusion: The survey revealed that some of the secondary schoolgirls practiced poor menstrual hygiene management (MHM), which needs further improvement. The study also found that the availability of continuous water supply in the school, types of toilet facility in the school, availability of private space to manage periods at school, learning about MHM in schools and availability of female toilets kept locked inside were factors significantly associated with MHM practice of students, which require integration of Zonal Health and education bureau to jointly work towards the improvement of school WASH facilities.

AbstractSex chromosomes rapidly turn over in several taxonomic groups. Sex chromosome turnover is generally thought to start with the appearance of a new sex-determining gene on an autosome while an old sex-determining gene still exists, followed by the fixation of the new one. However, we do not know how prevalent the transient state is, where multiple sex-determining loci coexist within natural populations. Here, we removed a Y chromosome with a master male-determining gene DMY from medaka fish using high temperature-induced sex-reversed males. After four generations, the genomic characteristics of a sex chromosome were found on one chromosome, which was an autosome in the original population. Thus, the elimination of a master sex-determining locus can reveal a cryptic locus with a possible sex-determining effect, which can be the seed for sex chromosome turnover. Our results suggest that populations that seem to have a single-locus XY system may have other chromosomal regions with sex-determining effects. In conclusion, the coexistence of multiple sex-determining genes in a natural population may be more prevalent than previously thought. Experimental elimination of a master sex-determining locus may serve as a promising method for finding a locus that can be a protosex chromosome.

Background: Common mental disorders are highly prevalent in the population, affecting people across all regions of the world. In Ethiopia, mental disorders are the leading non-communicable disorders. World Health Organization (WHO) report shows that 4,480,113 (4.7%) and 3,139,003 (3.3%) people in Ethiopia are estimated to suffer from depression and anxiety, respectively. However, there are only limited studies conducted on common mental disorders in Africa including Ethiopia. Even if there was a previous study conducted among Harari regional state residents 7 years back, nowadays there are many possible factors that could increase the prevalence of common mental disorders in the community like the novel coronavirus pandemic, ethnic war, and current socio-economic crises in Ethiopia., Objective: To assess the prevalence of common mental disorders and associated factors among adult residents of Harari regional state, eastern Ethiopia., Methods: A community-based cross-sectional study was conducted from March 1 to March 30, 2022. A systematic random sampling technique was used to select 1,192 study participants. Data were collected by interviewer-administered structured and semi-structured questionnaires. A common mental disorder was assessed by the Self-Reporting Questionnaire of 20-Item (SRQ-20) questionnaire. Data were entered into Epi Data version 3.2 and exported to Stata Version 16 for analysis. The multivariable binary logistic regression analysis with a 95% confidence interval and p  < 0.05 was used to identify factors associated with common mental disorders., Result: From a total of 1,192 eligible participants, 1,168 responded to this survey, giving a response rate of 97.98%. The prevalence of common mental disorders among adults in the Harari Region of this study was 21.31% (95% CI, 18.8-23.60). Being female with Adjusted Odds Ratios (AOR = 1.31, 95%CI, 1.09-2.09), single (AOR = 2.03, 95%CI, 1.37-3.01), divorced (AOR = 3.06, 95%CI, 1.97-4.76), widowed (AOR = 1.79, 95%CI, 1.23-3.26), unemployed (AOR = 1.97, 95%CI, 1.18-3.31), having family history of mental illness (AOR = 3.17, 95%CI, 1.54-6.96) and age greater or equal to 55 years (AOR = 105, 95%CI, 1.69-3.54) were statistically associated with common mental disorders., Conclusion: The prevalence of common mental disorder in the study area was sharply increased. Being female, single, divorced, widowed, family history of mental illness, being unemployed and age greater or equal to 55 years old were statistically positively associated with common mental disorder. Considering these determinants, screening, early identification, and providing appropriate intervention for common mental disorders in the community should be of great concern., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Abdeta, Birhanu, Kibret, Alemu, Bayu, Bogale, Meseret, Dechasa, Wondimneh, Abinew, Lami, Wedaje, Bete, Gemechu, Nigussie, Negash, Dirirsa, Berhanu, Husen, Eyeberu, Godana, Dessie, Sertsu, Hiko, Asfaw, Dereje and Nigussie.)

Background: Sanitation or sanitary workers are exposed to hepatitis virus infections because of filthy and dangerous working conditions. The current global systematic review and meta-analysis aimed to estimate the pooled sero-prevalence of occupationally associated hepatitis virus infection among them., Methods: Preferred Reporting Items for Systematic Reviews (PRISMA), and Population, Intervention, Comparison, Outcome and study design (PICOS) were used for flow diagram, and review questions, respectively. Four databases other methods were used published articles from 2000 to 2022. Boolean logic (AND, OR), MeSH, and keywords were used: (Occupation *OR Job *OR Work) AND (Hepatitis A *OR Hepatitis B virus *OR Hepatitis C virus *OR Hepatitis E virus) AND (Solid waste collectors [SWCs] *OR Street sweepers [SS] *OR Sewage workers [STWs] *OR health care facilities cleaners [HCFCs)) AND (Countries). Stata MP/17 software was used for pooled prevalence analysis, meta-regression analysis (Hedges) at a 95% confidence interval (CI:95%)., Results: A total of 182 studies were identified studies, a total of 28 studies were included from twelve countries. Of these, from developed (n = 7) and developing countries (n = 5). From total a of 9049 sanitary workers, 5951(66%), 2280 (25%) and 818 (9%) were STWs, SWCs and SS, respectively. Globally, the pooled sero-prevalence of occupational-related hepatitis viral infections among sanitary workers was 38.06% (95% CI: 30-0.46.12). Of this, it was 42.96% (95% CI: 32.63-53.29) and 29.81% (95% CI: 17.59-42.02) for high-income and low-income countries, respectively. Meanwhile, by sub-analysis, the highest pooled sero-prevalence of hepatitis viral infections by categories, type and year were 47.66% (95%CI: 37.42-57.90), 48.45% (95% CI: 37.95-58.96), and 48.30% (95% CI: 36.13-60.47) for SWTs, HAV, and 2000 to 2010 year, respectively., Conclusion: The consistency of the evidence suggests that sanitation workers, particularly sewage workers, are susceptible to occupationally acquired hepatitis regardless of their working conditions, necessitating significant changes to occupational health and safety regulations from governmental policies and other initiatives to reduce risks among sanitary workers., (© 2023. The Author(s).)

Introduction: Child marriage is a union before the age of 18 and a violation of human right. Around 21% of young women in the world married before reaching the age of 18. Every year, 10 million girls under the age of 18 are married. Child marriage causes lifetime suffering, and its abolition was one component of the Sustainable Development Goal to achieve gender equality and empower women and girls. However; abolition of child marriage by 2030 will not happen because its prevalence in the community has remained stable., Objective: To assess the prevalence of child marriage and its associated factors among reproductive-age women from March 7 to April 5, 2022 in Harari Regional State, eastern Ethiopia., Methods: Community-based cross-sectional study was conducted from March 7 to April 5, 2022 among the reproductive age group in the Harari Region state, Eastern Ethiopia. A systematic random sampling technique was used to find study participants. Data were obtained by face-to-face interview using a pre-tested structured questionnaire, input into EpiData version 3.1 and analyzed using Stata version 16. The proportion with 95% confidence interval (CI) and the summery measure were used to report the prevalence. A multivariable logistic regression analysis model was used to examine associated factors, and the results were provided as an adjusted odds ratio (AOR) with a 95% confidence interval., Result: In this study 986 were responded to the interview, making response rate of 99.6%. The median age of study participants was 22 years. The prevalence of child marriage was 33.7% [95% CI: 30.8-36.7] in this study. Being a Muslim (AOR = 2.30, 95% CI = 1.26, 4.19), diploma or higher level of education (AOR = 0.26, 95%CI = .10, 0.70), rural residence (AOR = 5.39, 95% CI = 3.71, 7.82), a marriage arranged by others (AOR = 2.68, 95% CI = 1.49, 4.82) and not knowing legal age of marriage (AOR = 4.49, 95% CI = 2.57, 7.85) were significantly associated with child marriage., Conclusion: According to this report, nearly one out of every three women engages in child marriage. The practice was more common among those with lower educational attainment, those who lived in rural areas, people who were unaware of the legal age of marriage, and those whose engagement was decided by others. Focusing on strategies that allow for intervention in these factors is beneficial in ending child marriage, which has a direct and indirect impact on women's health and educational achievement., (© 2023. The Author(s).)

The currently dominant Omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has swiftly diverged into clades. To predict the probable impact of these clades, the consensus insertions/deletions (indels) and amino acid substitutions of the whole genome of clades were compared with the original SARS-CoV-2 strain. The evolutionary history of representatives of clades and lineages was inferred using the maximum-likelihood method and tested using the bootstrap method. The indels and polymorphic amino acids were found to be either clade-specific or shared among clades. The 21K clade has unique indels and substitutions, which probably represent reverted indels/substitutions. Three variations that appear to be associated with SARS-CoV-2 attenuation in the Omicron clades included a deletion in the nucleocapsid gene, a deletion in the 3'untranslated region, and a truncation in open reading frame 8. Phylogenetic analysis showed that the Omicron clades and lineages form three separate clusters., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.)

Since its discovery at the end of 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has rapidly evolved into many variants, including the subvariant BA.2 and the GKA clade. Genomic clarification is needed for better management of the current pandemic as well as the possible reemergence of novel variants. The sequence of the reference genome Wuhan-Hu-1 and approximately 20 representatives of each variant were downloaded from GenBank and GISAID. Two representatives with no track of in-definitive nucleotides were selected. The sequences were aligned using muscle. The location of insertion/deletion (indel) in the genome was mapped following the open reading frame (ORF) of Wuhan-Hu-1. The phylogeny of the spike protein coding region was constructed using the maximum likelihood method. Amino acid substitutions in all ORFs were analyzed separately. There are two indel sites in ORF1AB, eight in spike, and one each in ORF3A, matrix (MA), nucleoprotein (NP), and the 3'-untranslated regions (3'UTR). Some indel sites and residues/substitutions are not unique, and some are variant-specific. The phylogeny shows that Omicron, Deltacron, and BA2 are clustered together and separated from other variants with 100% bootstrap support. In conclusion, whole-genome comparison of representatives of all variants revealed indel patterns that are specific to SARS-CoV-2 variants or subvariants. Polymorphic amino acid comparison across all coding regions also showed amino acid residues shared by specific groups of variants. Finally, the higher transmissibility of BA.2 might be due at least in part to the 48 nucleotide deletions in the 3'UTR, while the seem-to-be extinction of GKA clade is due to the lack of genetic advantages as a consequence of amino acid substitutions in various genes., Competing Interests: The authors declare that they have no conflicts of interest., (Copyright © 2023 Ida B. K. Suardana et al.)

Background: Healthcare workers are in constant contact with a wide variety of materials and surfaces, including waste, body fluids, mucous membranes, food, their own bodies, and the skin of patients. As a result, their hands are colonized by different groups of pathogens. Hand hygiene of healthcare workers is recognized to be the main factor in reducing healthcare-associated infections. Therefore, this study aimed to assess hand hygiene adherence and related factors among nurses working in public hospitals in eastern Ethiopia., Methods: An institutional based cross-sectional study was conducted in Hospital, Hararghe zone, Eastern Ethiopia from July 1 to 30, 2021. A total of 451 study participants were randomly selected, after the proportional allocation of study participants to each selected hospital. The data was collected using self-administered questionnaire and observation checklist. SPSS version 26 was used to analyze the data. Bivariable and multivariable analysis were employed to assess the association between outcome and independent variables. Finally, a p -value of < 0.05 was used as a cutoff point for statistical significance., Results: Out of 436 eligible nurses, the overall hand hygiene compliance was 37.4% [95% CI (0.33, 0.42)]. The overall compliance among those working in medical, surgical, OR ward, OPD, Gynecology/obstetrics, emergency ward, Intensive care units, Pediatrics, and other wards/departments was 46.8, 44.8, 35.7, 28.2, 20.7, 45.1, 23.1, 40.5, and 29.4%, respectively. The mean knowledge score was 21.6% (SD: 2.08). Furthermore, there was a statistically significant association between hand hygiene compliance and gender, work experience, training in hand hygiene, availability of running water, and knowledge of hand hygiene., Conclusion: The current study found overall compliance with hand hygiene accounted for 34.7%. Therefore, an exemplary worker may initiate others to do so, and strong managerial and leadership commitment may also help the workers stick to the rules and regulations to follow the multimodal hand hygiene practice as per WHO recommendation., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Umar, Geremew, Worku Kassie, Dirirsa, Bayu, Mengistu, Berhanu and Mulat.)

Background: Psychoactive substance use becomes a major public health and socioeconomic problem worldwide. Despite its burden and consequences, there is no community-based study conducted on psychoactive substance use and associated factors in eastern Ethiopia. Therefore, this study aimed to assess the magnitude and determinants of current alcohol, tobacco, and khat among adults living in Harari regional state, eastern Ethiopia., Methods: A community-based cross-sectional study was conducted on 955 adults living in Harari regional state. Participants were randomly recruited using a simple random sampling technique. Data were collected by interviewer-administered structured and semi-structured questionnaires. Data were entered into Epi Data version 3.1 and exported to Stata version 14.0 for analysis. Logistic regression analysis was performed to determine the association between the outcome and independent variables, and the statistical significance was declared at a p < 0.5., Results: Of 955 eligible participants, 95.29% participated in the study. The overall prevalence of current alcohol use, tobacco use, and khat use in this study was 8.24, 14.5, and 63.30%, respectively. The availability of alcohol, being unemployed, and being a current khat user were significantly associated with current alcohol use. Being male, having a low level of education, having peer pressure, having a common mental disorder, being a current alcohol user, and being a khat user were identified as significant predictors for current tobacco use. The age between 31 and 40 years, being a Muslim religion follower, being a farmer, being a current tobacco user, and availability of khat were significantly associated with current khat use., Conclusion and Recommendations: The prevalence of psychoactive substance use in the study area was relatively high compared with that of previous studies. By considering these determinants, screening, early identification, and developing appropriate intervention strategies to prevent and tackle current alcohol, tobacco, and khat use in the community should be of great concern., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Bete, Lami, Negash, Eyeberu, Birhanu, Berhanu, Abdeta, Nigussie, Dechasa, Gemechu, Wedaje, Alemu, Kibret, Bayu, Meseret, Abinew, Wondimneh, Dirirsa, Godana, Husen, Alemu, Nigussie, Heluf, Bogale and Dessie.)

This study aims to assess hand hygiene compliance and associated factors among healthcare providers in Dessie referral hospital (Ethiopia) using the gold standard WHO's observational checklist and self-administered questionnaire. Hand hygiene practices of 230 healthcare providers from ten hospital wards were observed over 24 hours period. The required numbers of sample were proportionally allocated among the different professions and wards. The overall observed hand hygiene compliance was only 17.6%. Hand hygiene training , availability of functional sink , knowledge about hand hygiene , attitude towards hand hygiene , availability of water and soap , and availability of alcohol-based hand rub were positively associated with hand hygiene compliance. As lower levels of compliance were observed for indications that have potential risk for patients, healthcare providers need to follow the WHO's multimodal hand hygiene improvement strategies. This study also indicated the important prerequisites that could help improve hand hygiene.

Freshwater halfbeaks of the genus Nomorhamphus (Zenarchopteridae) uniquely diversified on Sulawesi Island, where tectonic movements have been very active since the Pliocene. Most species of this genus have quite limited distributions, which indicates that geographic isolations have contributed to their diversification. In this study, we demonstrated that secondary contacts and resultant admixtures between long-isolated species/populations may have also been important. We found that the mitochondrial phylogeny of a group of Nomorhamphus in Southeast Sulawesi was discordant with the nuclear phylogeny. Most notably, individuals in the upper and lower streams of the Moramo River, a small river in this region, clustered with each other in the mitochondrial phylogeny but not in the nuclear phylogeny; in the latter, the lower-stream individuals formed a clade with individuals in the Anduna River, a different river with no present water connection to the Moramo River. Phylogenetic network and population structure analyses using genomic data obtained from RNA-seq revealed that the lower-stream Moramo population admixed with the upper-stream Moramo lineage in ancient times. These findings indicate that the observed mito-nuclear discordance was caused by mitochondrial introgression and not incomplete lineage sorting. The phylogenetic network also revealed several other admixtures between ancient lineages. Repeated admixtures were also evidenced by topological incongruence in population trees estimated using the RNA-seq data. We propose that activities of many fault systems dissecting Southeast Sulawesi caused repeated secondary contact.

Introduction: Although the Practice of traditional medicine is accorded great importance worldwide, it seems to face a notable challenge. A notable challenge is the lack of a reference standard for determining the appropriate utilization of traditional medicine for patients. There is little evidence about the usual utilized traditional medicine in the study area. Therefore, this study aimed to assess practice of traditional medicine and associated factors among residents in Eastern Ethiopia., Methods: A community-based cross-sectional study was conducted from January 20, 2022 to February 20, 2022. About 818 study participants were recruited using a systematic random sampling technique. Data were collected by face-to-face interviews. The collected data were analyzed using Statistical Package for Social Sciences (SPSS) version 22 computer software. The association between an outcome variable and independent variables was assessed using binary logistic regression and the strength of association was presented using Adjusted Odd Ratio (AOR) with its 95% confidence intervals (CI)., Result: A total of 803 participants were included in the final analysis with a 98.2 % response rate. From the total study participants, 563 (70.1%) [95%CI: 66.8-73.3] had used traditional medicine in the past 6 months. Factors such as being farmer [AOR = 1.06; 95%CI: (1.03-3.7)], having a diploma degree or higher [AOR = 3.2, 95% CI (1.4-7.3)] and having no history of chronic disease [AOR = 0.21; 95% CI: (0.1-0.5)] were significantly associated traditional medicine practice., Conclusion: The proportion of traditional medicine practice was high. The most commonly utilized traditional medicines were Damakase, Tenadam, Zingibil and Erate. A national health policy should give a great emphasize on rational utilization of traditional medicine., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Nigussie, Godana, Birhanu, Abdeta, Demeke, Lami, Gemechu, Eyeberu, Bogale, Dechasa, Getachew, Negash, Aliyi, Meseret, Kibret, Nigatu, Dirirsa, Gebremariam, Bayu, Abinew, Ali, Wondimneh, Alemu, Dilebo, Alemu and Dessie.)

Background: Occupational exposure to blood and body fluids has become a serious public health problem for healthcare workers and is a major risk for the transmission of various infections such as human immune-deficiency virus, hepatitis B virus, and hepatitis C virus. This systematic review and meta-analysis aims to determine the career time and previous one-year global pooled prevalence of occupational exposure to blood and body fluids among healthcare workers., Methods: For the review, the articles published in English were searched using the electronic databases (SCOPUS/Science Direct, PubMed, Web of Science, Google Scholar, CINAHL, MEDLINE, Cochrane Library, DOAJ, and MedNar) with a combination of Boolean logic operators (AND, OR, and NOT), Medical Subject Headings (MeSH), and keywords. A quality assessment was conducted to determine the relevance of the articles using JBI critical appraisal tools. Furthermore, several steps of assessment and evaluation were taken to select and analyze the relevant articles., Results: Of the 3912 articles identified through the electronic database search, 33 that met the inclusion criteria were included in the final analysis. The current study found that the global pooled prevalence of blood and body fluids among healthcare workers during career time and in the previous one year accounted for 56.6% (95% CI: 47.3, 65.4) and 39.0% (95% CI: 32.7, 45.7), respectively. Based on subgroup analysis by publication year, survey year, and World Health Organization regions, the highest prevalence of blood and body fluid exposure in the last 12 months was observed among articles published between 2004 and 2008 (66.3%), conducted between 2003 and 2008 (66.6%), and conducted in the Southeast Asia Region (46.9%). The highest career time prevalence was 60.6%, 71.0%, and 68.4% for articles published between 2015 and 2020, conducted between 2015 and 2019, and reported in the African region, respectively., Conclusion: The current study revealed a high prevalence of occupational exposure to blood and body fluids among healthcare workers and suggests the need to improve occupational health and safety services in healthcare systems globally., Competing Interests: The authors declare that there are no conflicts of interest in this work., (Copyright © 2022 Dechasa Adare Mengistu et al.)

The prolonged global spread and community transmission of severe acute respiratory syndrome virus 2 (SARS-CoV-2) has led to the emergence of variants and brought questions regarding disease severity and vaccine effectiveness. We conducted simple bioinformatics on the spike gene of a representative of each variant. The data show that a number of polymorphic amino acids are located mostly on the amino-terminal side of the S1/S2 cleavage site. The Omicron variant diverges from the others, with the highest number of amino acid substitutions, including the receptor-binding site (RBS), epitopes, S1/S2 cleavage site, fusion peptide, and heptad repeat 1. The current sharp global increase in the frequency of the Omicron genome constitutes evidence of its high community transmissibility. In conclusion, the proposed guideline could give an immediate insight of the probable biological nature of any variant of SARS-Cov-2. As the Omicron diverged the farthest from the original pandemic strain, Wuhan-Hu-1, we expect different epidemiological and clinical patterns of Omicron cases. On vaccine efficacy, slight changes in some epitopes while others are conserved should not lead to a significant reduction in the effectiveness of an approved vaccine., Competing Interests: The authors have declared no conflicts of interest., (Copyright © 2022 Gusti Ngurah Mahardika et al.)

Introduction: In Ethiopia, more than four million children are anticipated to live under particularly difficult circumstances. Street children are subject to violence, a lack of health care, and a lack of education. Which denies them the right to live in a secure environment and exposes them to different health problems. Currently, little is known about the prevalence of Streetism, including health conditions. Therefore, this study was aimed to assess the health status of street children and determinants of Streetism., Methods: Mixed methods (sequential) were employed from February 1 to 28, 2021. Quantitative cross-sectional study design and phenomenological qualitative designs were applied. Overall, 220 street children were involved in the study. The most common reason that forced the children to resort to a street way of life is to look for a job and quarreled with parents. The data were collected using interviews methods. Chi-square test and multiple binary logistic regression were applied to examine the variations among variables with the health status of street children. Qualitative data were analyzed using the thematic analysis technique., Results: The study included a total of 220 street children. As to the quantitative study, the majority of study participants (92.73%) drank alcohol regularly. Depression (39.22%) and peer pressure (43.14%) were the most common initiation causes of drinking alcohol. According to a qualitative study report, "Street children are mostly affected by the communicable disease" and… They are addicted to substances like benzene" which had a profound effect on their health." Furthermore, the study discovered a statistically significant association between respondents' health status and sociodemographic characteristics (age and educational status), job presence, and drug use., Conclusion: This study identified the factors that drove street children to live on the streets, such as the inability to find work and disagreements with their parents. The majority of the street children were affected by preventable and treatable diseases. Unfortunately, almost all street children reported drinking alcohol, which exposed them to a variety of health problems. In general, the study discovered that street children require immediate attention. Decision-makers and academicians should collaborate to develop a plan for these children's health and social interventions., Competing Interests: The authors have declared that no competing interests exist.

Background : Of the 6.2 million estimated deaths of children under 15 years of age globally, the death toll of children under 5 years of age accounted for 5.3 million. In Ethiopia, even though significant progress has been made, facility-based research shows that the mortality rate of children under 5 is still high. In the country, particularly in the eastern part, evidence on trends in under-five mortality and associated factors from population-based longitudinal data is limited. Objective : The objective of the study was to assess under-five mortality focusing on the trends and associated factors based on 2008-2016 data in Kersa Health and Demographic Surveillance Site, Eastern Ethiopia. The method : The study was based on 9 years of surveillance data. The surveillance site was founded in 2007 with the aim of producing community-based health and demographic data in the eastern Ethiopia. Data were collected from the surveillance site and analyzed with STATA version 15 (for factor analysis) and/or Statistical Package for Social Sciences (SPSS) version 26 (for trend analysis) and Microsoft (MS) Excel software. The autoregressive integrated moving average (ARIMA) model and Mann-Kendall were used to analyze mortality trends. Multi-level logistic regression was used to assess the associated factors. Result : There were a total of 18 759 newborns in the surveillance sites, of which 1602 died of children under 5 years of age, and the total mortality rate for children under 5 years of age was 85 per 1000 live births. Trend analysis shows that the mortality rate of children under 5 has been steadily declining during the study period. Multi-level logistic regression shows that the variance of the random component model related to the intercept term is statistically significant, which means that there is a change in the mortality rate of children under 5 between the survey years, which is explained by the random intercept term. Antenatal care visits by mothers (AOR = .61, 95% CI = .49, .74), primary education (AOR = .58, 95% CI = .49, .68), normal birth weight (AOR = .78, 95% CI = .64, .95), and having 2 or fewer total births (AOR = .37, 95% CI = .22, .37) were all associated with child death. Conclusion : Despite the downward trend, the mortality rate of children under 5 years old at the surveillance sites is high. Effective intervention measures should be implemented.

Background: COVID-19 brought significant challenges to public health. It changed the view of global health and safety, trust in the healthcare system, and clients' willingness to seek healthcare. To contain the course of the COVID-19 pandemic and its detrimental effects, understanding peoples' health behavior, especially healthcare-seeking, and determining the community risk perception is very important. Thus, this study aimed to determine the health-seeking behavior, community's risk perception to COVID-19 pandemics, and factors influencing the community risk perception in Harari regional state, Ethiopia., Methods: Community-based cross-sectional study was conducted from 5 to 30 February 2021. A total of 1320 adult (>18 years) participants were selected using systematic random sampling. The data were collected using an online kobo collect toolbox and analyzed using descriptive statistical tests. Chi-square test and multiple binary logistic regression were applied to examine the difference between variables. A p -value < 0.05 was considered to be of statistical significance., Results: The study included 1296 respondents >18 years old. The overall prevalence of willingness to seek healthcare in the study area was 35.6% (95% CI: 33%-38.3.0%). The mean cumulative score of risk perception was 30.5 (SD ± 7.25) with the minimum and maximum score of 13 and 63, respectively. A total of 656 (50.6%) of the participants had low-risk perceptions concerning COVID-19. The study found a statistically significant association between risk perception and sociodemographic characteristics (age, educational status, and income), and knowledge of the respondents., Conclusion: The overall prevalence of willingness to seek healthcare was 35.6%. Healthcare intervention aimed to contain the COVID-19 pandemic should consider the factors associated with the study area. Similarly, the study found a low-risk perception among the community that needs critical action to manage the COVID-19 pandemic and to protect the community as a whole. Thus, it is necessary to improve community risk perception through health education., Competing Interests: Declaration of conflicting interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2021.)

In medaka fishes, the family Adrianichthyidae, tropical species are known to be sexually more dimorphic than temperate species. If this reflects that tropical species are exposed to stronger sexual-selection pressures than temperate species, mating behaviors may also differ between tropical and temperate species. Our mating experiments revealed that males of Oryzias woworae , a tropical species of the family, perform "chasing" another male more frequently than males of O. sakaizumii , a temperate congener, and that male-male "combats" of O. woworae tended to be followed by chasing compared with combats of O. sakaizumii males, indicating that O. woworae males are more aggressive in male-male interactions than O. sakaizumii males. Males of O. woworae also performed "approaching" a female and "mating dance" more frequently than O. sakaizumii males, indicating that O. woworae males are also more active in courting females. Males of O. sakaizumii often omitted "mating dance" in their mating sequences, supporting this view. Moreover, O. woworae females tended to reject male "wrapping", an attempt for fertilization, more frequently than O. sakaizumii females, suggesting that O. woworae females are choosier in mating than O. sakaizumii females. These findings are concordant with the view that O. woworae is exposed to stronger sexual-selection pressures than O. sakaizumii .

Fowl adenovirus (FAdV) infection is an emerging problem in the world poultry industry, especially in broilers, as the causal agent of inclusion body hepatitis or hepatitis-hydropericardium syndrome. From December 2017 to January 2019, we recorded 116 cases of suspected hepatitis-hydropericardium syndrome in chicken farms throughout Indonesia. Necropsy was done on each farm site with three to five freshly dead birds per farm. Tissue samples were collected in virus transport medium and frozen at -20 C. The virus was cultivated in 9-day-old fertilized specific-pathogenic-free chicken eggs. FAdV was detected using polymerase chain reaction with a published primer set. The polymerase chain reaction products were sequenced and subjected to a BLAST search. The phylogeny was inferred using the neighbor-joining method and tested using the bootstrap test. FadV-D and -E are present in Indonesia and confirmed in 40 of 116 suspected cases. The affected chicken ages were 27.27 ± 8.94 days. Most affected farms were raising broiler chickens. The only typical clinical sign was unusual daily mortality of >1%, while the three most frequent pathologic lesions were swelling and hemorrhage of kidney and liver, as well as hydropericardium. To reduce economic loss, a vaccine should be developed immediately.

Many conotoxins, natural peptides of marine cone snails, have been identified to target neurons. Here, we provide data on pharmacological families of the conotoxins of 11 species of cone snails collected in Bali. The identified definitive pharmacological families possibly targeting neuronal tissues were α (alpha), ι (iota), κ (kappa), and ρ (rho). These classes shall target nicotinic acetylcholine receptors, voltage-gated Na channels, voltage-gated K channels, and α1-adrenoceptors, respectively. The VI/VII-O3 conotoxins might be prospected as an inhibitor of N -methyl-d-aspartate. Con-ikot-ikot could be applied as an α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor blocker medicine. The definitive pharmacology classes of conotoxins as well as those yet to be elucidated need to be further established and verified., Competing Interests: The authors declare no competing financial interest., (Copyright © 2019 American Chemical Society.)

Although there are many examples of color evolution potentially driven by sensory drive, only few studies have examined whether distinct species inhabiting the same environments evolve similar body colors via shared sensory mechanisms. In this study, we tested whether two sympatric freshwater fish taxa, halfbeaks of the genus Nomorhamphus and ricefishes of the genus Oryzias in Sulawesi Island, converge in both body color and visual sensitivity. After reconstructing the phylogeny separately for Nomorhamphus and Oryzias using transcriptome-wide sequences, we demonstrated positive correlations of body redness between these two taxa across environments, even after phylogenetic corrections, which support convergent evolution. However, substantial differences were observed in the expression profiles of opsin genes in the eyes between Nomorhamphus and Oryzias . Particularly, the expression levels of the long wavelength-sensitive genes were negatively correlated between the taxa, indicating that they have different visual sensitivities despite living in similar light environments. Thus, the convergence of body colorations between these two freshwater fish taxa was not accompanied by convergence in opsin sensitivities. This system presents a case in which body color convergence can occur between sympatric species via different mechanisms., Competing Interests: None declared.