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Why circumcision reduces HIV risk

Male circumcision significantly reduces HIV infection risk by 60% in rural Uganda men. The removal of foreskin tissue containing HIV target cells explains most of the protection. Circumcision also reduces genital ulcer disease by lowering rates of trauma-induced ulcers, not just those caused by herpes.

SourcePLOS·JournalPLOS Medicine·DateNov 23, 2009

HIV vaccine failure probably caused by virus used, says new research

Researchers found that people who had previously built up immunity to the adenovirus used in the trial had a higher risk of infection with HIV after receiving the vaccine. The study suggests that other adenovirus-based vaccines, such as those for tuberculosis and malaria, may also be at risk due to the same immune system reaction.

SourceImperial College London·JournalProceedings of the National Academy of Sciences·DateNov 16, 2009

UAB researchers find TB-prevention therapy is cost-effective option

Researchers at UAB found that preventive antibiotic TB therapy for HIV-infected patients is approximately $950 per case, compared to a previously reported range of $900-$1500 for treating new smear-positive TB cases. The integrated care approach also offers economic benefits by reducing productivity losses and preventing the spread of TB.

SourceUniversity of Alabama at Birmingham·JournalThe International Journal of Tuberculosis and Lung Disease·DateSep 9, 2009

2 new antibodies found to cripple HIV

Two new broadly neutralizing antibodies (bNAbs) have been discovered to target the HIV virus, providing a promising lead for AIDS vaccine development. The newly found antibodies, PG9 and PG16, attach to a novel site on the virus, making them more accessible for vaccine design.

SourceScripps Research Institute·JournalScience·DateSep 3, 2009

College students who feel 'invincible' unlikely to accept vaccines, MU researcher finds

A new study found that college students with high danger invulnerability tend to decline HIV vaccines, while those with psychological invulnerability are more likely to accept them. The study suggests that efforts to promote vaccine acceptance should consider the role of invulnerability in students' health-protective behaviors.

SourceUniversity of Missouri-Columbia·JournalAmerican Journal of Health Behavior·DateJul 29, 2009

Penn-Wistar team gains insight into HIV vaccine failure

A team of researchers refuted a popular hypothesis about the failure of the Merck STEP HIV vaccine study by finding no correlation between pre-existing neutralizing antibodies and increased susceptibility to infection. The study analyzed blood samples from participants with varying degrees of pre-existing immunity to Ad5 and found that...

SourceThe Wistar Institute·JournalNature Medicine·DateJul 20, 2009