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Table 3 Prevalences of HBV, HCV, HIV, and Syphilis serological markers in manual sugar cane cutters in the Northeast and Central regions of Brazil, 2016 (n = 937)

From: Epidemiology of HIV, syphilis, and hepatitis B and C among manual cane cutters in low-income regions of Brazil

Serological markers Positive (CI 95%)a
n %
Isolated HBsAg 1 0.1 0.0–0.6
HBsAg + anti-HBc 6 0.6 0.3–1.4
Anti-HBs + anti-HBc 92 9.8 8.1–11.9
Anti-HBc alone 50 5.3 4.1–7.0
Lifetime HBV infection 149 15.9 13.7–18.4
Anti-HBs alone 193 20.6 18.1–23.3
Anti-HCV 0  
Lifetime Syphilis (TT)b 23 2.5 1.6–3.6
Active Syphilis (TTb and VDRLc) 11 1.2 0.6–2.1
Anti-HIV 3 0.3 0.1–1.0
  1. aCI: Confidence Interval bTT: treponemal test cVDRL Venereal disease research laboratory