All Woman

Male circumcision helps women too

Monday, September 01, 2014    

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A campaign to promote male circumcision to prevent AIDS infection also indirectly benefits women by reducing their risk of contracting the HIV virus, according to a study presented at July's world AIDS forum.

In a South African community where large numbers of men had been circumcised, women who had sex only with circumcised partners had a 15 per cent lower risk of being infected by HIV compared with women who also had uncircumcised partners, it found.

"The risk reduction is small, but it is a start," said investigator Kevin Jean of France's National Agency for AIDS Research (ANRS).

The study was presented on the final day of the 20th International AIDS conference in Melbourne, Australia.

The World Health Organisation (WHO) recommends voluntary circumcision as an option for men in 14 sub-Saharan countries struggling with high rates of HIV.

The guidelines — which have triggered a multimillion-dollar programme — are founded on evidence from three trials carried out in South Africa, Kenya and Uganda.

These concluded that circumcision resulted in a reduced HIV risk — for men — of between 50 and 60 per cent.

What has been fiercely debated, though, is the impact of male circumcision on women.

Key questions included whether, if large numbers of men were circumcised, the infection risk for women would fall too.

Another issue raised was that circumcised men might think wrongly that they were fully shielded from HIV and ignore advice to wear a condom --thus increasing the risk for women.

Looking at these questions, the new study enrolled 2,452 women aged between 15 and 29 who lived in Orange Farm in South Africa, where the first of the landmark trials was carried out in 2002.

The women's blood was tested in 2007, 2010 and 2012, and they were also asked questions about their sexual behaviour, as was a representative sample of local men.

During this time, the prevalence of circumcision among men in the community rose from 12 per cent to 53 per cent.

Over 30 per cent of women reported having sexual relations only with circumcised men: 17.8 per cent became infected during the study period.

But among women who had sex with uncircumcised men, the prevalence of HIV was almost twice as high, at 30.4 per cent.

In an interview with AFP, Jean said women who had only circumcised partners were relatively small group.

Statistically speaking, they were less likely to have multiple sex partners, a well-known boost of infection risk.

This explained in part why the risk reduction -- 15 per cent, averaged out over the whole period — seems relatively small, Jean said.

Further work will show whether this protection improves over time as more men in the community become circumcised and uninfected younger men have the operation, he said.

There was also good news from the questions on sex behaviour: men were unlikely to engage in unprotected intercourse after being circumcised, he said.

"What we are seeing is an indirect effect," he said. "Circumcision reduces HIV among men, and if fewer men are infected, they are less likely to infect women."

He stressed, though: "The message still has to be made that they use condoms."

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