Women subconsciously prefer the aroma of dominant men when they are at the most fertile stage of the menstrual cycle, research suggests, in a BBC Health report.

Study results, published in Biology Letters, reveals that women have evolved to seek out the most virile sexual partner when conception is likely

The U.S. Preventive Services Task Force has updated its 1996 guidelines for HIV screening, now recommending that all pregnant women be tested.

The move is a preventive measure to ensure HIV-infected pregnant women can start HAART treatment and thereby reduce the risk of vertical transmission of infection to their infants. They can also be advised to avoid breastfeeding, which is known to increase the risk of transmission

The International Labor Organization (ILO) issued a report Monday stating an estimated 3,500 people, the majority being working class, are living with HIV/AIDS.

According to the report, the majority of Sri Lankans living with the virus that causes AIDS are between the ages of 30-39 and are working class citizens

Early testing has proven so successful at helping prevent the spread of AIDS in babies, that a federal panel is recommending that all pregnant women, not just those at high risk, be screened for the virus.

In 1996, the U.S. Preventine Services Task Force said there was not enough evidence to prove that screening all pregnant women was beneficial

Reuters reports one in four new infections occurs in Asia, home to more than half the world's people, and 1,500 in the region die from the disease each day.

Officials and aid workers said the risk of AIDS in areas struck by the tsunami had increased due to the breakdown in basic services and health-care systems, which left many people without access to condoms