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In this study, we aimed to determine the extent to which secondary school students practise environmental ethics. To this end, we used a questionnaire-based survey to accomplish the purpose of the study. The study's variables included knowledge, value, care, and responsibility in environmental ethics. We selected a sample of 180 students using systematic random sampling from a population of 347 Form Four secondary school students studying geography in Papar, Sabah, Malaysia. The findings showed that all study variables, knowledge, value, care and responsibility were at high levels. Furthermore, a multiple regression analysis revealed that the value and care variable in environmental ethics influenced the responsibility variable which contributed 14.5% and 2.7%, respectively to student's environmental ethics. Based on the findings, we concluded that students who incorporate environmental ethics into their daily lives will successfully fulfil their environmental ethics responsibilities. The study's implications suggest that environmental education in schools exposes students to environmental ethics and helps them develop more ethical and disciplined attitudes towards the environment.

Social studies learning is expected to integrate environmental education, in accordance with the objectives of social studies learning to improve students' thinking skills, social problem solving skills and care for the environment In fact, social studies teachers were found to have not utilized the physical or social environment as a source of learning, despite various environmental pollutions have often occurred in Indonesia and resulted in global warming as an indication of climate change. This research was intended to 1) identify materials of environmental pollution around students as a source of social studies learning; 2) integrate environmental pollution materials in social studies learning to anticipate climate change; 3) determine the effectiveness of learning activities on the integration of environmental pollution materials to anticipate climate change. This research was classified as quantitative and qualitative research (Mix Method). Data were collected by means of interviews, observations, documentations and questionnaires. The results of the research showed that 1) materials of environmental pollution around students as a source of social studies learning consisted of water and air pollution that have an impact on global warming, thus resulting in climate change; 2) environmental pollution materials were integrated into social studies learning by reviewing core competencies and basic competencies as outlined in the lesson plan (RPP) and student worksheets (LKS) with a score of 83% (valid); 3) Learning activities on environmental pollution materials had been running more effectively, because of the integration of pollution cases in the surrounding environment to anticipate climate change. This was indicated by the significant difference in the results of the pretest and posttest tests of 0.025.

In this study, an obstacle unlikely faced by teachers is the lack of innovation in the learning model employed. The teachers are still being the center of learning resources so that they are made to correct the perception by creating a learning model that students prefer. This study aims to provide a new design in environment-based-learning (EBL) to improve geographical skills and to encourage students to think critically, innovatively and to come up with solutions. This research was development study of environment-based-learning in geography teaching. Learning media used covered syllabus, lesson plans, student modules and EBL teaching materials. Samples consisted of 32 students aged 13- 14 years who were purposively selected. Data collection techniques were a compilation of observation, interviews, questionnaires documentation, and test. Data were analyzed from the syllabus, study plan, and student module validation along with instructional media, teacher and student response questionnaire, teacher and student interviews, student observation sheets, and students' learning outcomes. EBL model design consisted of 5 steps, encountering the problem, problem analysis, discovery and reporting, presentation, and review and evaluation. The students' learning outcome that asses by a test base on geographical skill indicator revealed that students' geographical skills increase. The indication are the students able on thinking critically about changes taken place in their environment, so they could present environmentally friendly measures. Besides, students preferred the new design of EBL as they were welcomed to think in a critical, innovative, and solvable way of solving problems in their environment to improve their geographical skills. Those provided students a belief in loving geography education from an early age.

Paramyxoviruses have been shown to infect a wide range of hosts, including rodents, and humans. Several novel murine paramyxoviruses have been discovered in the last several decades. Although these viruses are unclassified, they are recognised as Beilong virus, Mojiang virus, and Tailam virus in rats, Jeilongvirus, Nariva, Novel Paju Apodemus paramyxovirus -1 and -2 (PAPV-1 and PAPV-2) in mice, and Pentlands paramyxovirus (PenPV) -1, -2, and -3 in squirrels. These paramyxoviruses were reported mainly in China and a few other countries like Australia, the Republic of Korea, Trinidad, and France. The classified paramyxovirus, Sendai virus in rodents was also reviewed. Paramyxoviruses infection in rodents leads to respiratory distress such as necrotizing rhinitis, tracheitis, bronchiolitis, and interstitial pneumonia. Infections caused by paramyxoviruses often spread between species, manifesting disease in spillover hosts, including humans. In June 2012, it becomes a great concern in China whereby, three miners were reported dead potentially caused by a novel zoonotic Mojiang virus, a henipa-like virus isolated from tissues samples of rats from the same cave. Rats are considered to be natural hosts for the Mojiang virus from the literature research. This review focuses on the paramyxoviruses in rodents, including the epidemiological distributions, transmission and pathogenesis, clinical manifestations, diagnostic methods, and control and prevention of paramyxoviruses infection to provide a better understanding of these highly mutating viruses. [Open Vet J 2022; 12(6.000): 877-887]

West Nile virus is a mosquito-borne neurotropic pathogen with a wide host range that constitutes a significant risk to public and animal health. There is limited information on WNV infection in domesticated mammals in Malaysia; however, current reports indicate infections in birds, macaques, bats and pigs from Malaysia. In this study, 203 serum samples from cattle, goats, and horses were tested for the presence of anti-WNV IgG using a competitive enzyme-linked immunosorbent assay (c-ELISA). Additionally, using one-step RT-PCR, nasopharyngeal swabs were analyzed for WNV RNA from all 203 animals in this study. The WNV seroprevalence was 32.53% (27/83) at 95% CI (0.2342–0.4319) in cattle, 48.27% (14/29) at 95% CI (0.3139–0.6557) in goats and 53.84% (49/91) at 95% CI (0.4366–0.6373) in horses. Cross-reactive JEV antibodies were detected in two cattle and 34 horses. None of the cattle or goats tested positive for WNV RT-PCR. Seven horses were positive for WNV RT-PCR, a molecular prevalence of 7.69% (7/91) at 95% CI (0.0353–0.1528). This is the first reported detection of WNV in domesticated mammals of Malaysia, a significant addition to the growing evidence that WNV is being transmitted from vectors to susceptible hosts in Malaysia.

Being a tropical country with a conducive environment for mosquitoes, mosquito-borne illnesses such as dengue, chikungunya, lymphatic filariasis, malaria, and Japanese encephalitis are prevalent in Malaysia. Recent studies reported asymptomatic infection of West Nile virus (WNV) in animals and humans, but none of the studies included mosquitoes, except for one report made half a century ago. Considering the scarcity of information, our study sampled mosquitoes near migratory bird stopover wetland areas of West Coast Malaysia located in the Kuala Gula Bird Sanctuary and Kapar Energy Venture, during the southward migration period in October 2017 and September 2018. Our previous publication reported that migratory birds were positive for WNV antibody and RNA. Using a nested RT-PCR analysis, WNV RNA was detected in 35 (12.8%) out of 285 mosquito pools consisting of 2,635 mosquitoes, most of which were Culex spp. (species). Sanger sequencing and phylogenetic analysis revealed that the sequences grouped within lineage 2 and shared 90.12%-97.01% similarity with sequences found locally as well as those from Africa, Germany, Romania, Italy, and Israel. Evidence of WNV in the mosquitoes substantiates the need for continued surveillance of WNV in Malaysia.

Background and Aim: Rattus spp. are the most common animals capable of adapting to their environment. They can be reservoirs or vectors of diseases that facilitate the transmission of zoonotic-borne parasites to humans. Hence, a study on the detection of parasites in rat populations in urban areas is crucial to prepare for emerging zoonosis. Therefore, this study aims to identify blood parasites, ectoparasites, and helminths in Rattus spp. from wet markets located in Klang Valley, an urban area with a high-density human population. Materials and Methods: A total of 32 rats were trapped in several wet markets in Klang Valley, Malaysia. They were anesthetized for morphometric examination followed by exsanguination. Various parasitological techniques such as perianal tape test, simple flotation, direct examination of the intestine, and fecal smear were performed for intestinal parasite detection; hair plucking, skin scraping, and full body combing for ectoparasite identification; and blood smear, microhematocrit centrifugation, and buffy coat techniques for blood parasite detection. Results: The rats were identified as Rattus rattus (71.9%) and Rattus norvegicus (28.1%). The only blood protozoan found was Trypanosoma lewisi. The ectoparasites identified belonged to two broad groups, mites (Laelaps spp. and Ornithonyssus spp.) and fleas (Xenopsylla cheopis), known to be parasitic zoonotic disease vectors. The zoonotic intestinal parasites were cestodes (Hymenolepis nana), nematodes (Nippostrongylus brasiliensis, Strongyloides spp., Trichuris spp., Capillaria spp., and Syphacia spp.), and intestinal protozoa (coccidian oocysts and Giardia spp.). Microscopic images showing Giardia spp. are the first report of this organism in rats in Malaysia. Conclusion: Rats caught in this urban area of the Klang Valley harbor parasites can pose a potential zoonotic threat to humans, raising public health concerns because of their proximity to densely populated urban areas.

Background and Aim: Feline leukemia virus (FeLV) is classified as Retroviridae gammaretrovirus. FeLV occurs worldwide, including Malaysia. Thus far, only one decade-old study on molecular characterization of Malaysian FeLV isolates exists, which resulted in a scarcity of updated information of current FeLV isolates circulating in Malaysia. This study was conducted to determine the status of FeLV in clinically ill cats and to study the molecular characterization and phylogenetic relatedness of the current isolates. Materials and Methods: Convenience sampling was performed in 20 cats from the Gasing Veterinary Hospital in Selangor. Plasma and saliva samples were collected from 15 clinically ill cats and 5 healthy cats subjected to one-step reverse transcription-polymerase chain reaction with primers targeting a highly conserved gene of U3-LTR-gag. Results: Two clinically ill cats' plasma and saliva samples tested positive for FeLV RNA. Partial nucleotide sequencing and phylogenetic analysis revealed that the current isolates were 94-99% homologous to the previous Malaysian and Japanese FeLV isolates. Conclusion: Current FeLV isolates from this study displayed higher similarity with the previous Malaysian isolates, signifying that a similar FeLV strain circulated among the cat population in Selangor.

Background and Aim: Laboratory mice are widely used as a research model to provide insights into toxicological studies of various xenobiotic. Acetaminophen (APAP) is an antipyretic and analgesic drug that is commonly known as paracetamol, an ideal hepatotoxicant to exhibit centrilobular necrosis in laboratory mice to resemble humans. However, assessment of histopathological changes between mouse strains is important to decide the optimal mouse model used in APAP toxicity study. Therefore, we aim to assess the histomorphological features of APAP-induced liver injury (AILI) in BALB/C and Institute of Cancer Research (ICR) mice. Materials and Methods: Twenty-five ICR mice and 20 BALB/C mice were used where five animals as control and the rest were randomly divided into four time points at 5, 10, 24 and 48 hours post-dosing (hpd). They were induced with 500 mg/kg APAP intraperitoneally. Liver sections were processed for hematoxylin-eosin staining and histopathological changes were scored based on grading methods. Results: Intense centrilobular damage was observed as early as 5 hpd in BALB/C as compared to ICR mice, which was observed at 10 hpd. The difference of liver injury between ICR and BALB/C mice is due to dissimilarity in the genetic line-up that related to different elimination pathways of APAP toxicity. However, at 24 hpd, the damage was markedly subsided and liver regeneration had taken place for both ICR and BALB/C groups with evidence of mitotic figures. This study showed that normal liver architecture was restored after the clearance of toxic insult. Conclusion: AILI was exhibited earlier in BALB/C than ICR mice but both underwent liver recovery at later time points.

This review explores the intricate relationship between acute respiratory distress syndrome (ARDS) and Type II diabetes mellitus (T2DM). It covers ARDS epidemiology, etiology and pathophysiology, along with current treatment trends and challenges. The lipopolysaccharides (LPS) role in ARDS and its association between non-communicable diseases and COVID-19 are discussed. The review highlights the therapeutic potential of human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) for ARDS and T2DM, emphasizing their immunomodulatory effects. This review also underlines how T2DM exacerbates ARDS pathophysiology and discusses the potential of hUC-MSCs in modulating immune responses. In conclusion, the review highlights the multidisciplinary approach to managing ARDS and T2DM, focusing on inflammation, oxidative stress and potential therapy of hUC-MSCs in the future. [ABSTRACT FROM AUTHOR]

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