HIV/AIDS News

A vaccine that is capable of delivering a double whammy against AIDS-causing human immunodeficiency virus by both providing immunity against the infection while at the same time destroying cells infected by the virus is ready for clinical trials, a group of Russian researchers announced today.

The team from Vector State Scientific Center of Virology and Biotechnology, Kol’tsovo, Novosibirsk first reported their research on the CombiHIVvac in the journal Doklady Biochemistry and Biophysics in May 2007.

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A panel of outside medical experts is meeting Tuesday to evaluate a Pfizer HIV and AIDS drug that, if approved, would the the first in a new class of treatments. Pfizer is seeking support from the Food and Drug Administration for maraviroc, a pill being targeted at patients for whom other drugs, or drug combinations, have become ineffective.

Maraviroc "could broaden the arsenal of treatments to combat resistant forms" of the virus that causes AIDS, Pfizer told analysts last week when it issued first-quarter results. Maraviroc would be the first new oral class of HIV, or human immunodeficiency virus, medicines in more than 10 years, Pfizer said.

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UN health agencies on Wednesday gave the stamp of approval for including male circumcision in the panoply of arms to fight the spread of AIDS, stressing though that its success also depended on safe-sex awareness, sensitivity and resources.

The World Health Organisation (WHO) and the specialised agency UNAIDS declared that millions of lives could be saved if circumcision were widely and safely practised.

They issued guidelines at a press conference in Paris following a debate among experts, health officials and grassroots groups in Geneva on March 6-8. 

"The recommendations represent a significant step forward in
HIV prevention," said Kevin de Cock, director of the WHO's HIV/AIDS Department.

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The German cabinet approved a national action plan against the spread of HIV and AIDS, which focuses on increased preventive measures and research into new strains of drug-resistant viruses.

When it comes to HIV and AIDS, the discrepancy between knowledge of the disease and actual behavior is widening, German leaders warned this week.

According to government statistics, almost 100 percent of the German population is aware of the most frequent modes of HIV transmission and ways to protect against infection.

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LOS ANGELES, CA -- March 6, 2007 -- Raltegravir could be a viable therapeutic option for people with highly drug-resistant strains of HIV, according to findings from 2 studies presented here at the 14th Conference on Retroviruses and Opportunistic Infections (CROI).

The drug inhibits the enzyme HIV-1 integrase, making it effective against multi-drug resistant strains of HIV-1 and particularly CCR5-tropic and CXCR4-tropic strains, said investigator David Cooper, MD, director, National Centre in HIV Epidemiology and Clinical Research, University of New South Wales, Sydney, Australia.

In a presentation on February 28th, Dr. Cooper discussed the study -- Blocking integrase in treatment Experienced patients with a Novel Compound against HIV: MeRcK, MK-0518 (BENCHMRK)-1 -- which included patients in Europe, Asia/Pacific, and Peru.

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Science Daily — A new study led by McGill University researchers shows that half of all HIV transmissions happen when newly infected people don’t know they are carrying the virus and may not even test positive for it.

The study, published in the April edition of the Journal of Infectious Diseases and already available online, followed 2,500 patients in eight Montreal HIV clinics over eight years. It showed that newly infected patients are eight times more likely to transmit the virus than those in the chronic stage of AIDS given the same behaviour.

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LOS ANGELES, Feb. 28 -- Like the traditional HIV-associated opportunistic infections, the toll of conditions such as heart and liver disease is also affected by the immune status of a patient, researchers reported here.

Most of us have previously assumed that prolonged survival and advancing age explain much of the increase in these common end-organ diseases" among HIV patients, said Jason Baker, M.D., of the University of Minnesota at the Conference on Retroviruses and Opportunistic Infections here.

But in fact, he told an oral abstract session, the increase is related to a patient's CD4 count.

Continue reading "CD4 Count Predicts Non-Opportunistic Diseases in HIV" »

Breast-feeding, which helps build a baby's immune system, may be the best option for HIV-infected mothers in developing countries, despite the risk of transmitting the virus that causes AIDS to their babies, according to new studies presented on Monday.

HIV-positive mothers generally are counseled to feed their babies formula to limit the risk of transmission of the human immunodeficiency virus, but that has caused problems in nations where clean water and other needs may not be met.

Dr. Hoosen Coovadia a pediatrician at South Africa's University of KwaZulu-Natal, told the 14th Conference on Retroviruses and Opportunistic Infections that instructing HIV-infected mothers in developing nations to breast-feed would result in about 300,000 children becoming infected with HIV, but would save 1.5 million from dying of other diseases.

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