Are white homosexual men still taking too many HIV risks?

Sep 07, 2010

Risky sexual behavior among members of a subset of the gay community is still adding to the spread of HIV. Research published in the open access journal BMC Infectious Diseases has found that young white homosexual men have an important contribution in the local spread of HIV.

Despite increased education and awareness of HIV in the Western world, the number of new infections continues to rise each year. To try and understand this phenomenon, researchers from Ghent University in Belgium compared the of viruses isolated from more than 500 patients - male and female, gay and straight, Caucasian and non-Caucasian - who were newly diagnosed at an clinic between 2001 and 2009. Their aim was to pinpoint factors contributing to the local spread of HIV in order to inform the development of regional prevention strategies.

"Using genetic profiling techniques we were able to group viruses into 'clusters' of highly related variants", lead researcher Dr. Chris Verhofstede explains. "Clusters of viruses are indicative for the local onward transmission of this particular viral strain. We defined more and larger clusters amongst the HIV subtype B viruses compared to the non-B viruses. We also found that clustered viruses are more frequently isolated from young who have sex with men and who have a high prevalence of other sexually transmitted diseases". In other words, it appears that a significant number of new HIV infections in the region occur as a result of high-risk behavior between young white .

This finding confirms the results of epidemiological studies. Verhofstede and co-workers suggest further research to allow the design of more targeted prevention programs focused on this group.

Explore further: More bad news in fight against persistent HIV reservoirs

More information: Epidemiological study of phylogenetic transmission clusters in a local HIV-1 epidemic reveals distinct differences between subtype B and non-B infections, Kristen Chalmet, Delfien Staelens, Stijn Blot, Sylvie Dinakis, Jolanda Pelgrom, Jean Plum, Dirk Vogelaers, Linos Vandekerckhove and Chris Verhofstede, BMC Infectious Diseases (in press), www.biomedcentral.com/bmcinfectdis/

add to favorites email to friend print save as pdf

Related Stories

Origin of HIV transmission between males pinpointed

Feb 10, 2010

A team of scientists, led by a virologist from the University of California, San Diego's Center for AID Research (CFAR), has discovered the origin of strains of human immunodeficiency virus (HIV) among men ...

Black gay men may be at increased HIV risk

Jun 29, 2009

Black gay men have less choice when it comes to sexual partners than other groups and, as a result, their sexual networks are closely knit. These tightly interconnected networks make the rapid spread of HIV more likely. In ...

Studies suggest HIV subtype more deadly than others

Nov 27, 2007

Two studies led by researchers at the Johns Hopkins Bloomberg School of Public Health found that people infected with HIV in Thailand die from the disease significantly sooner than those with HIV living in other parts of ...

Recommended for you

HIV pills show more promise to prevent infection

Jul 22, 2014

There is more good news about HIV treatment pills used to prevent infection in people at high risk of getting the AIDS virus: Follow-up from a landmark study that proved the drug works now shows that it does ...

User comments : 0