5 results on '"Gaspar PC"'
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2. [A national network of molecular tests to detect Chlamydia trachomatis and Neisseria gonorrhoeae: a pilot implementation experience in Brazil].
- Author
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Gaspar PC, Miranda AE, Bigolin A, Morais AAC, Aragón MG, Morais JAV, Alonso Neto JB, Lannoy LH, Sanchez MN, Cravo Neto DB, Bermúdez XPCD, and Benzaken AS
- Subjects
- Humans, Brazil, Male, Female, Pilot Projects, Adult, Young Adult, National Health Programs, Adolescent, Molecular Diagnostic Techniques methods, Chlamydia Infections diagnosis, Chlamydia trachomatis isolation & purification, Chlamydia trachomatis genetics, Neisseria gonorrhoeae isolation & purification, Neisseria gonorrhoeae genetics, Gonorrhea diagnosis
- Abstract
This study aimed to know the opinion of professionals participating in an experiment to implement a pilot for molecular tests to detect Chlamydia trachomatis and Neisseria gonorrhoeae at the Brazilian Unified National Health System (SUS). The detection rate of C. trachomatis and/or N. gonorrhoeae and the factors associated with infection were determined. The strategy included laboratories belonging to the HIV and viral hepatitis viral load network. Testing targeted people who are more vulnerable to sexually transmitted infections and collected urine samples and/or vaginal, endocervical, and/or male urethral swabs. Questionnaires were sent to state managers and laboratory professionals about the implementation of the pilot. Reviews were overall positive. Weaknesses included difficulties changing work processes, lack of human resources, poorly sensitized care professionals, and absence of primary urine tubes, the only input not provided. Strengths included the centralized acquisition of tests, sharing of equipment, and storage of samples at room temperature. Of the 16,177 people who were tested, 1,004 (6.21%) were positive for C. trachomatis; 1,036 (6.4%), for N. gonorrhoeae; and 239 (1.48%), for C. trachomatis/N. gonorrhoeae . Detection of any infection occurred more frequently in young people (≤ 24 vs. > 24 years) (adjOR = 2.65; 95%CI: 2.38-2.96), men (adjOR = 1.95; 95%CI: 1.72-2.21), brown/black individuals (adjOR = 1.06; 95%CI: 1.05-1.11), those in Southeastern Brazil (adjOR = 1.08; 95%CI: 1.02-1.13), and in urethral secretion samples (adjOR = 1.46; 95%CI: 1.41-1.52). Results show the importance of making testing available nationwide, which supported the implementation of a definitive network to detection C. trachomatis/N. gonorrhoeae in SUS.
- Published
- 2024
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3. Prevalence of Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vaginalis, and Mycoplasma genitalium and risk factors among pregnant women in Brazil: Results from the national molecular diagnosis implementation project.
- Author
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Miranda AE, Gaspar PC, Schörner MA, Barazzetti FH, Dias GB, Bigolin A, Pascom ARP, Barreira D, and Bazzo ML
- Subjects
- Humans, Female, Brazil epidemiology, Pregnancy, Adult, Cross-Sectional Studies, Adolescent, Prevalence, Young Adult, Risk Factors, Middle Aged, Sexually Transmitted Diseases epidemiology, Sexually Transmitted Diseases diagnosis, Mycoplasma genitalium isolation & purification, Mycoplasma Infections epidemiology, Mycoplasma Infections diagnosis, Gonorrhea epidemiology, Gonorrhea diagnosis, Neisseria gonorrhoeae isolation & purification, Trichomonas vaginalis isolation & purification, Pregnancy Complications, Infectious epidemiology, Pregnancy Complications, Infectious diagnosis, Chlamydia trachomatis isolation & purification, Chlamydia Infections epidemiology, Chlamydia Infections diagnosis, Trichomonas Vaginitis epidemiology, Trichomonas Vaginitis diagnosis
- Abstract
Background: Sexually transmitted infections (STIs) are a public health problem. The aim of the present study was to assess the prevalence and risk factors associated with at least one STI (Chlamydia trachomatis [CT], Neisseria gonorrhoeae [NG], Trichomonas vaginalis [TV], and Mycoplasma genitalium [MG]) in Brazil., Methods: A cross-sectional study was conducted using secondary data from the pilot implementation of the National Service for molecular diagnosis of CT, NG, TV, and MG in pregnancy. We obtained Ministry of Health surveillance data from the implementation project. Data encompassing pregnant women aged 15-49 years from public antenatal clinics in Brazil in 2022 were included., Results: A total of 2728 data of pregnant women were analyzed. The prevalence of at least one infection was 21.0% (573), with the highest prevalence in the Southeast region (23.3%) and the lowest in the Center-West region (15.4%). The prevalence of CT was 9.9% (270), NG 0.6% (16), TV 6.7% (184), and MG 7.8% (212). Factors associated with any infection were from 15 to 24 years (AOR = 1.93; 95% CI: 1.58-2.35); reported family income up to US$400 (AOR = 1.79; 95% CI: 1.03-3.34); declared not living maritally with their partners (AOR = 1.90, 95% CI: 1.52-2.37) and had more than one sexual partner in their lifetime (AOR = 2.09, 95% CI: 1.55-2.86)., Conclusion: This study showed a high prevalence of at least one STI among pregnant women in Brazil, particularly among younger women. It also provides up-to-date national data on CT, NG, TV, and MG infections in this population. These findings underscore the importance of enhancing access to STI screening for young pregnant women within the Brazilian public health system., (© 2024 International Federation of Gynecology and Obstetrics.)
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- 2024
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4. Recent dynamics in Neisseria gonorrhoeae genomic epidemiology in Brazil: antimicrobial resistance and genomic lineages in 2017-20 compared to 2015-16.
- Author
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Golparian D, Bazzo ML, Ahlstrand J, Schörner MA, Gaspar PC, de Melo Machado H, Martins JM, Bigolin A, Ramos MC, Ferreira WA, Pereira GFM, Miranda AE, and Unemo M
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- Brazil epidemiology, Humans, Male, Genome, Bacterial, Female, Adult, Molecular Epidemiology, Young Adult, Genomics, RNA, Ribosomal, 23S genetics, Middle Aged, Ceftriaxone pharmacology, Adolescent, Multilocus Sequence Typing, Cefixime pharmacology, Neisseria gonorrhoeae genetics, Neisseria gonorrhoeae drug effects, Neisseria gonorrhoeae classification, Gonorrhea microbiology, Gonorrhea epidemiology, Anti-Bacterial Agents pharmacology, Drug Resistance, Bacterial genetics, Azithromycin pharmacology, Microbial Sensitivity Tests, Whole Genome Sequencing
- Abstract
Objectives: Regular quality-assured WGS with antimicrobial resistance (AMR) and epidemiological data of patients is imperative to elucidate the shifting gonorrhoea epidemiology, nationally and internationally. We describe the dynamics of the gonococcal population in 11 cities in Brazil between 2017 and 2020 and elucidate emerging and disappearing gonococcal lineages associated with AMR, compare to Brazilian WGS and AMR data from 2015 to 2016, and explain recent changes in gonococcal AMR and gonorrhoea epidemiology., Methods: WGS was performed using Illumina NextSeq 550 and genomes of 623 gonococcal isolates were used for downstream analysis. Molecular typing and AMR determinants were obtained and links between genomic lineages and AMR (determined by agar dilution/Etest) examined., Results: Azithromycin resistance (15.6%, 97/623) had substantially increased and was mainly explained by clonal expansions of strains with 23S rRNA C2611T (mostly NG-STAR CC124) and mtr mosaics (mostly NG-STAR CC63, MLST ST9363). Resistance to ceftriaxone and cefixime remained at the same levels as in 2015-16, i.e. at 0% and 0.2% (1/623), respectively. Regarding novel gonorrhoea treatments, no known zoliflodacin-resistance gyrB mutations or gepotidacin-resistance gyrA mutations were found. Genomic lineages and sublineages showed a phylogenomic shift from sublineage A5 to sublineages A1-A4, while isolates within lineage B remained diverse in Brazil., Conclusions: Azithromycin resistance, mainly caused by 23S rRNA C2611T and mtrD mosaics/semi-mosaics, had substantially increased in Brazil. This mostly low-level azithromycin resistance may threaten the recommended ceftriaxone-azithromycin therapy, but the lack of ceftriaxone resistance is encouraging. Enhanced gonococcal AMR surveillance, including WGS, is imperative in Brazil and other Latin American and Caribbean countries., (© The Author(s) 2024. Published by Oxford University Press on behalf of British Society for Antimicrobial Chemotherapy. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
- Published
- 2024
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5. Aetiological molecular identification of sexually transmitted infections that cause urethral discharge syndrome and genital ulcer disease in Brazilian men: a nationwide study.
- Author
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Bazzo ML, Machado HM, Martins JM, Schörner MA, Buss K, Barazzetti FH, Gaspar PC, Bigolin A, Benzaken A, de Carvalho SVF, Andrade LDF, Ferreira WA, Figueiroa F, Fontana RM, da Silva MFCR, Silva RJC, Aires Junior LF, Neves LAS, Miranda AE, and Network BG
- Subjects
- Male, Humans, Ulcer complications, Brazil epidemiology, Chlamydia trachomatis genetics, Herpesvirus 2, Human, Treponema pallidum, Neisseria gonorrhoeae genetics, Genitalia, Coinfection epidemiology, Coinfection complications, Sexually Transmitted Diseases diagnosis, Sexually Transmitted Diseases epidemiology, Sexually Transmitted Diseases etiology, Trichomonas vaginalis, Herpesvirus 1, Human, Cytomegalovirus Infections complications
- Abstract
Background: Little is known about the aetiology of urethral discharge syndrome (UDS) and genital ulcer disease (GUD) in Brazil due to limited access to laboratory tests and treatment based mainly on the syndromic approach., Objectives: To update Brazilian treatment guidelines according to the current scenario, the first nationwide aetiological study for UDS and GUD was performed., Methods: Male participants with urethral discharge (UD) and/or genital ulcer (GU) reports were enrolled. Sample collection was performed by 12 sentinel sites located in the five Brazilian regions. Between 2018 and 2020, 1141 UD and 208 GU samples were collected in a Universal Transport Medium-RT (Copan). A multiplex quantitative PCR kit (Seegene) was used to detect UD: Chlamydia trachomatis (CT), Mycoplasma genitalium (MG), M. hominis (MH), Neisseria gonorrhoeae (NG), Trichomonas vaginalis (TV), Ureaplasma parvum (UP), U. urealyticum (UU) and another kit to detect GU: cytomegalovirus (CMV), Haemophilus ducreyi (HD), herpes simplex virus type 1 (HSV1), herpes simplex virus type 2 (HSV2), lymphogranuloma venereum (LGV), Treponema pallidum (TP) and varicella-zoster virus (VZV)., Results: In UD samples, the frequency of pathogen detection was NG: 78.38%, CT: 25.6%, MG: 8.3%, UU: 10.4%, UP: 3.5%, MH: 3.5% and TV: 0.9%. Coinfection was assessed in 30.9% of samples, with 14.3% of NG/CT coinfection. The most frequent pathogen identified in GU was HSV2, present in 40.8% of the samples, followed by TP at 24.8%, LGV and CMV at 1%, and HSV1 at 0.4%. Coinfection of TP/HSV2 was detected in 4.4% of samples. VZV and HD were not detected. In 27.7% of the GU samples, no pathogen was detected., Conclusion: This study provided the acquisition of unprecedented data on the aetiology of UDS and GUD in Brazil, demonstrated the presence of a variety of pathogens in both sample types and reaffirmed the aetiologies known to be most prevalent globally., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2024. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2024
- Full Text
- View/download PDF
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