4.7 Article

Risk of Sexually Transmitted Zika Virus in a Cohort of Economically Disadvantaged Urban Residents

Journal

JOURNAL OF INFECTIOUS DISEASES
Volume 224, Issue 5, Pages 860-864

Publisher

OXFORD UNIV PRESS INC
DOI: 10.1093/infdis/jiab001

Keywords

Zika; sexual transmission; sexual behavior

Funding

  1. National Institutes of Health, National Institute of Allergy and Infectious Diseases [R01 AI052473, R25 U01AI088752]
  2. National Institutes of Health, National Institute of Allergy and Infectious Diseases (Fogarty International Center) [R01 TW009504, R25 TW009338, F31 AI114245, D43 TW010540, R01 AI121207]
  3. Wellcome Trust [102330/Z/13/Z, 218987/Z/19/Z]
  4. Bahia State Research Support Foundation [PET0021/2016]
  5. Coordination for the Improvement of Higher Education
  6. National Council for Scientific and Technological Development, Brazil
  7. Wellcome Trust [218987/Z/19/Z] Funding Source: Wellcome Trust

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Through a prospective cohort study in an urban community in Salvador and a retrospective survey in 2017, males engaging in casual sexual encounters during the 2015 ZIKV epidemic were found to have a higher likelihood of being ZIKV positive, indicating certain groups may have an increased risk of sexually transmitted infections.
To understand the disease burden of sexually transmitted Zika virus (ZIKV), we prospectively followed a cohort of 359 adult and adolescent residents of an urban community in Salvador, Brazil, through the 2015 ZIKV epidemic. Later, in 2017, we used a retrospective survey to associate sexual behavior during the epidemic with ZI KV infection as defined by immunoglobulin G3 NS1 enzyme-linked immunosorbent assay. We found that males who engaged in casual sexual encounters during the epidemic were more likely (adjusted odds ratio, 6.2 [95% confidence interval, 1.2-64.1]) to be ZIKV positive, suggesting that specific groups may be at increased risk of sexually transmitted infections.

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