One in 10 London gay men has HIV, while one gay man in 25 across the United Kingdom has the virus, according to new figures released earlier this week, The Independent newspaper reported.
The annual report of the UK government-funded Health Protection Agency said HIV was rising among gay and bisexual men and also heterosexuals.
Meantime, national AIDS programs in several developing countries in Asia and Latin America are failing to address the needs of gay men, despite this group accounting for a significant proportion of new HIV diagnoses, according to a new UNAIDS report.
The UNAIDS HIV epidemic update, released this week, showed one in four HIV diagnoses in Latin America in 2005 was among men who have sex with men.
In the same year, as many of one-third of Bangkok gay men had HIV, according to the report.
Understanding the drivers of the epidemic such as inequality between men and women and homophobia is absolutely fundamental to the long-term response to AIDS, UNAIDS executive director Dr Peter Piot said.