This study was performed to validate a dried blood spot (DBS) method for the serological screening of HIV, syphilis, hepatitis B and C. It included 250 paired DBS and serum samples and 116 unpaired DBS samples from 366 unique patients from two laboratories between 8 October and 2 November 2021. As determined by original test request, these were tested using a DBS method for HIV Ag/Ab (n=216), anti-treponemal Ab (n=166), hepatitis B sAg (n=100), and hepatitis C Ab (n=100) Elecsys assays on the Roche Cobas automated platform. Using the manufacturer's (serum) cut-off for reactivity ('positivity'), the sensitivity and specificity of DBS testing compared with serum were: for HIV Ag/Ab 100% and 100%, for anti-treponemal Ab 68.3% and 100%, for hepatitis B sAg 95.9% and 100%, and for hepatitis C Ab 84.0% and 100%, respectively. Adjusting the assay cut-off using receiver operator curve analysis increased sensitivity of DBS testing for anti-treponemal Ab to 90.0%, hepatitis B sAg to 97.9% and hepatitis C Ab to 94.0% whilst maintaining specificity of 98.8%, 100% and 100%, respectively. With optimisation of assay cut-off, DBS can perform comparably with serum for serological testing for HIV, syphilis, hepatitis B and C and may be a valuable tool in increasing access to testing in New Zealand.
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http://dx.doi.org/10.1016/j.pathol.2023.06.010 | DOI Listing |
Pediatr Emerg Care
December 2024
Division of Pediatric Emergency Medicine, Department of Emergency Medicine, Atrium Health Levine Children's Hospital and Carolinas Medical Center, Charlotte, NC.
Objective: There is a lack of data regarding the incidence of sexually transmitted infections (STIs) and pregnancy among adolescents experiencing sex trafficking. This study aimed to determine the incidence proportion of STIs and pregnancy among adolescents evaluated for sex trafficking at an urban tertiary children's hospital compared to the community adolescent population.
Methods: This retrospective, cross-sectional study looked at adolescents aged 11 to 21 years experiencing sex trafficking from March 2019 to March 2022.
BMC Prim Care
December 2024
Fundación Mundo Sano, Buenos Aires, Argentina.
Background: Mother-to-child transmission (MTCT) of Trypanosoma cruzi and hepatitis B virus (HBV) increases morbidity and disability in Latin America and the Caribbean. The tailormade comprehensive antenatal care based on the Framework for the elimination of MTCT of HIV, syphilis, hepatitis B virus (HBV), and Chagas disease (EMTCT Plus) has been implemented in the region since 2018 through a private-public partnership. This study aimed to estimate the effectiveness of the intervention in preparing MTCT of T.
View Article and Find Full Text PDFEur J Med Res
December 2024
Department of Clinical Laboratory Medicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, 1278 Baode Road, Jing'an District, Shanghai, 200443, China.
Background: Neurosyphilis (NS) is the most serious complication elicited by the invasion of Treponema pallidum (T. pallidum) into the central nervous system. Identifying the neuro-invasion of T.
View Article and Find Full Text PDFBMC Public Health
December 2024
Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, 60611, USA.
BMC Infect Dis
December 2024
Santé Publique France, the National Public Health Agency, Saint-Maurice, 94415, France.
Background: The prevalence of syphilis, Chlamydia trachomatis (CT), and Neisseria gonorrhoeae (NG) in men who have sex with men (MSM) is very high. As these bacterial sexually transmitted infections (bSTIs) are frequently asymptomatic, they are often undiagnosed and therefore untreated. We aimed to characterize the profile of MSM who reported bSTI screening and diagnosis in the previous 12 months, and to identify the factors associated with a diagnosis of a bSTI among MSM in France.
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