New AIDS cases and AIDS-related deaths decline in D.C.: The continuation of a four-year decline is a credit to aggressive testing and treatment efforts. Still, the disease is at epidemic rates in the district, hitting the African-American community the hardest. l Washington Post

Incidence of TB declining to historic low in U.S.: But drug-resistant strains of the disease are increasing across the world. l Los Angeles Times

V.A. hospital fined for radiation errors on prostate patients: 97 of 116 radiation procedures had dosing errors, demonstrating a lack of safety protocols at the Philadelphia hospital. l New York Times

Flea and tick treatments under greater scrutiny: In response to 44,000 reports of adverse reactions, the EPA will implement stricter regulations on products applied directly to pets' skin. l Associated Press

Revised cyber security bill limits presidential authority: A bill that protects the nation's cyber system has been reintroduced in the Senate without a provision allowing the president to shut down the internet in case of a massive cyber attack. l Information Week

Ban on trade of polar bears is voted down by UN: The opposition, led by Canada, Greenland and Norway, said hunting and trade by indigenous peoples is insignificant to the decline of the bears. l Los Angeles Times

Low fat diet has little effect on cholesterol levels: Researchers said that a diet lower in fats does reduce heart disease. l HeathDay News

Low levels of vitamin D linked to heart disease: Nearly 75% of Americans have below normal levels of vitamin D. Risk may be reduced by a third by increasing those levels. l Los Angeles Times