A drug that helps prevent babies from catching the AIDS virus at birth can also protect them while nursing, researchers reported on Monday.

Circumcising men reduces the chance they and their wives will catch genital infections that may spur HIV's spread, researchers said today at a meeting in Boston.

A group of Australian researchers at the Universities of Melbourne and New South Wales have developed new tools and paradigms to understand immune evasion from HIV. The study, published Friday, January 25 in PLoS Pathogens, shows that both prior vaccination and timing influence the rates of immune escape, providing further insight into the effectiveness of T cell immunity to HIV.

A study published today in the Journal of Epidemiology and Community Health suggests that secondary school attendance is linked to lower risk of HIV infection among young people in rural South Africa.

The largest study to examine the effect of depression on HIV treatment found that depression significantly worsens a patient’s adherence to highly active antiretroviral therapy and clinical measures, but that effective antidepressant medication can reverse this outcome, according to a study by the Kaiser Permanente Division of Research and the Group Health Cooperative published in the current online issue of the Journal of Acquired Immune Deficiency Syndromes (JAIDS).

A plentiful ingredient found in human semen drastically enhances the ability of the human immunodeficiency virus (HIV) to cause infection, according to a report in the December 14, 2007, issue of the journal Cell, a publication of Cell Press.

Researchers from the University of Missouri and Imperial College London have found evidence suggesting why vaccines directed against the virus that causes AIDS and many cancers do not work. This research is being published in the Dec. 14 edition of The Journal of Biological Chemistry.

Researchers at The Warren Alpert Medical School of Brown University have created the first educational video for patients to explain rapid tests for HIV, a relatively new tool in the fight against the AIDS epidemic.

The 2007 UNAIDS/WHO AIDS epidemic update released last week has revised the global estimate of HIV/AIDS primarily due to a major reduction of the estimate for India to 2.5 million people living with HIV/AIDS, which is less than half of the previous official estimate of 5.7 million people.

A study carried out in the Department of Evolutionary and Education Psychology of the University of Granada (UGR) has revealed that Latin American immigrant adolescents are more likely to become infected with HIV than the Spanish, as they use methods of birth control less frequently, start having sex earlier and have more sex partners than Spanish adolescents.

A mutation in a little-studied structural region of the AIDS virus can cause resistance to several HIV drugs, according to a study published in PLoS Medicine by Gilda Tachedjian and colleagues from Australia, Canada, and the United States.

New research published in PLoS Medicine shows the high risk of acquiring HIV infection faced by men who have sex with men in developing countries. The findings make clear that it is vital for HIV prevention programs to try to reach these men.