Sero-prevalence of HBsAg, anti-HBc Ab, anti-HCV Ab and anti-GBV-C Ab among CSWs residing in Surabaya.*

*Plasma sample was tested for HBsAg, anti-HBc Ab, anti-HCV Ab and anti-GBV-C Ab using commertially available diagnostic kits.**Plasma sample was tested for anti-HIV antibodies using a rapid diagnostic kit, and was then tested using 2 additional diagnostic kits to confirm the diagnosis of HIV infection.***The sero-prevalence rate (%) among a group of CSWs indicated is shown in parentheses.