Traffic Pollution Linked to Risk Factor for Sudden Cardiac Death

SATURDAY, July 17 (HealthDay News) -- Exposure to high levels of traffic air pollution among people with heart or lung disease is associated with reduced heart rate variability (HRV), a risk factor for sudden cardiac death, finds a new study.

Major Leaguers Seem Prone to Injuries in First Half of Season

SUNDAY, July 18 (HealthDay News) -- Now that the Major League Baseball All-Star break has passed, the number of player injuries should slow down for the remainder of the season, new research suggests.

Aggressive Drug Therapy May Help Slow Spread of AIDS

SUNDAY, July 18 (HealthDay News) - Effective and widespread treatment of HIV disease may also help cut the rate of new infections, researchers report.

New Guidelines Urge Earlier Therapy for HIV Patients

SUNDAY, July 18 (HealthDay News) -- Starting antiretroviral treatment (ART) when an HIV patient has no symptoms can prevent the progressive immune system destruction that leads to AIDS, according to new treatment guidelines released by the International AIDS Society-USA Panel.

Flu Vaccine Via Skin Patch Shows Promise in Mice

SUNDAY, July 18 (HealthDay News) -- Wouldn't it be nice if you could get the flu vaccine through a stick-on skin patch instead of a shot?

Many False-Positive HIV Test Results for Those in AIDS Vaccine Trials

SUNDAY, July 18 (HealthDay News) -- Almost half of HIV-negative people who participate in clinical trials for HIV vaccines end up testing positive on routine HIV tests -- even though they're not actually infected, a new study shows.