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Anza Mapema

The burden of sexually transmitted infections among men who have sex with men (MSM) in Kisumu, Kenya.

This study, which is led by the Nyanza Reproductive Health Society, looks at the burden of hepatitis and STIs among MSM, who are participating in the Anza Mapema project.

The study has enrolled 764 MSM and assessed them for hepatitis B and C; HSV-2; syphilis; and urine and rectal chlamydia and gonorrhoea. Participants have been followed at three-monthly intervals over a 12-month period and received medical examinations and screening for STIs. Assessments of risk-behaviour are also conducted. HIV-positive participants are linked to care and HIV-negative participants receive support from a peer-led behavioural risk-reduction programme as part of the Anza Mapema project.

In 2017 the study was extended to include a PrEP arm. Additional data is being collected to provide information on the acceptability of and adherence to PrEP, and PrEP initiation protocols.

Early findings

  • Expanding test and treat for HIV prevention in MSM in Kisumu, Kenya. The Anza Mapema study: baseline participant characteristics and risk behaviours. Poster presented at IAS2017. Read…
  • Prevalence and risk factors of hepatitis B and C among men who have sex with men in the Anza Mapema study in Kisumu, Kenya. Poster SA AIDS Conference 2017. View…

Presentations at University of Nairobi STI/HIV/SRH Collaborative Research Group, January 2018

  • Incidence and predictors of urogenital chlamydia and gonnorhoea among men who have sex with men in Kisumu, the Anza Mapema study. Supriya Mehta.
  • Factors associated with virologic suppression among HIV-positive MSM. Frederick Otieno.
  • Factors associated with missed study visits among gay and bisexual MSM in Kisumu. Robert Bailey.
  • The role of peer outreach workers in recruitment and retention of gay, bisexual and other MSM in HIV prevention and care. Duncan Okall.
  • HIV incidence among MSM in Kisumu – relevance for the PrEP rollout. Susan Graham.
  • Baseline characteristics and eligibility of participants starting PrEP in the Anza Mapema study. Frederick Otieno.
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