Search through all our worldwide HIV and AIDS news and features, using the topics below to filter your results by subjects including HIV treatment, transmission and prevention, and hepatitis and TB co-infections.

How transmission occurs news

Show

From To
Menopause linked to decreased anti-HIV activity

Postmenopausal women’s cervicovaginal fluid had lower anti-HIV-1 activity than premenopausal women. Timing of menstrual cycle and hormonal contraception were not associated with differences in activity against HSV or HIV.

Published
30 March 2015
From
2 Minute Medicine
Cell-associated HIV mucosal transmission: The neglected pathway

Dr. Deborah Anderson from Boston University School of Medicine and her colleagues are challenging dogma about the transmission of HIV. Most research has focused on infection by free viral particles, while this group proposes that HIV is also transmitted by infected cells. While inside cells, HIV is protected from antibodies and other antiviral factors. Anderson chides fellow researchers for not using cell-associated HIV in their transmission models: "The failure of several recent vaccine and microbicide clinical trials to prevent HIV transmission may be due in part to this oversight." . The Journal of Infectious Diseases (JID) has devoted their December supplement to this important and understudied topic.

Published
23 December 2014
From
Medical News Today
Semen directly impairs effectiveness of microbicides that target HIV

Most microbicides work by targeting the virus itself, attempting to break it down or blocking its ability to infect a cell. However, the heightened infectiousness of HIV in the presence of semen appears to over-power any anti-viral effects the microbicides possess. The one exception to this finding is a different type of microbicide that acts on the host cells' receptors, stopping the virus from latching on from within. In the current study, this microbicide, [containing the drug called] called Maraviroc, was equally effective in preventing infection both with and without the presence of semen.

Published
13 November 2014
From
MedicalXpress
CDC Director Compares Ebola to AIDS. But How Similar Are They?

CDC director Tom Frieden says this about Ebola: "The only thing like this has been AIDS." In fact, the two viruses share similarities but also have big differences.

Published
17 October 2014
From
Poz magazine news
What we know about transmission of the Ebola virus among humans

The Ebola virus is transmitted among humans through close and direct physical contact with infected bodily fluids, the most infectious being blood, faeces and vomit.

Published
08 October 2014
From
World Health Organization
Are "Sugar Daddies" to Blame for HIV Transmission in Africa?

It was long assumed that a major driver of the vastly greater prevalence of HIV infection in Zimbabwe, South Africa and other epicenters of the African HIV epidemic is intergeneratioal sex - sepcifically, young women having sexual realtionships with older "sugar daddies". Contrary to expectations, a recent high-quality, longitudinal study showed that participation in intergenerational sex did not impact the likelihood of contracting HIV infection.

Published
05 September 2014
From
Scientific American
Does the global HIV response understand anal sex?

Stigma, squeamishness and misunderstanding of anal sex is leading to research gaps and inaccurate information about the risks of this common sexual behaviour, and hindering effective HIV/AIDS prevention strategies, experts say. A move towards "sex positive" approaches could enhance social acceptance and increase protection.

Published
28 August 2014
From
IRIN
What’s Your Long-term Risk of Transmitting HIV?

How mathematical models can help us better understand both the long-term probability of HIV transmission and the benefit of combining risk-reduction strategies.

Published
04 July 2014
From
Poz
HIV transmission risks: Review updates CDC estimates, adds impact of treatment, condom use

Authors of a comprehensive review of literature reporting data on per-act HIV transmission risks have updated the last estimates produced by the US Centers for Disease Control and Prevention in 2005, and in the process have highlighted the importance of treatment and prevention reaching those at greatest risk.

Published
05 June 2014
From
Science Speaks
Second analysis concludes that we can't eliminate the long-term possibility of HIV transmission from someone on treatment

A study that estimates the risk that someone living with HIV and taking antiretroviral therapy could transmit the virus reports that, on the basis of the

Published
31 May 2014
By
Gus Cairns
← First12345...6Next →

Filter by country