Prevalence of HIV and other sexually transmitted infections among female sex workers in Kisumu, Western Kenya, 1997 and 2008.

Background: In 1997, a survey in Kisumu found a prevalence of HIV infection among female sex workers (FSW) of 75%. Only 50% reported using a condom with the last client. In 2008, we conducted another survey to collect data to inform an intervention targeting FSW in Kisumu.

Capture-recapture for estimating the size of the female sex worker population in three cities in Côte d'Ivoire and in Kisumu, western Kenya.

Objective: To estimate the female sex worker population size in three cities in Côte d'Ivoire and in Kisumu, Kenya.

Methods:   Capture-recapture was used, calculating size estimates by first 'tagging' a number of individuals and, through an independent recapture, calculating the proportion of overlap. The same procedures were used in all four cities.

Short communication: HIV type 1 genetic diversity among tea plantation workers in Kericho, Kenya.

In preparation for HIV-1 vaccine trials in Kenya, 2801 study volunteers, from a tea plantation in Kericho, were recruited as part of a prospective vaccine cohort development study. Cryopreserved plasma was available from 401 HIV-positive volunteers, and was the source of viral RNA for genotyping by the multiregion hybridization assay (MHA). Logistic regression was performed to determine association of risk factors and HIV-1 recombinant and dual infections.