Panamanian officials announces they have banned the importation of U.S. beef following the discovery of the second case of mad cow disease.

The Agriculture Ministry says it notified U.S. officials of the ban, which was effective immediately. Panama banned U.S. beef after the first mad cow case was reported, and subsequently lifted it in October; only allowing the importation of products originating from animals no more than 30 months old.

Panamanian officials announces they have banned the importation of U.S. beef following the discovery of the second case of mad cow disease.

The Agriculture Ministry says it notified U.S. officials of the ban, which was effective immediately. Panama banned U.S. beef after the first mad cow case was reported, and subsequently lifted it in October; only allowing the importation of products originating from animals no more than 30 months old.

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.

Researchers at Columbus Children's Research Institute studied injuries associated with mini trampolines as opposed to those previously connected to full-sized ones.

The study finds injuries sustained on small, jogging or exercise trampolines are similar to those found on full-sized trampolines. The findings are published in the July issue of Pediatrics.

As kids we were always told that too much TV was bad for us. Three new studies may actually put this belief into context, citing too much viewing can harm a child's ability to learn and even reduce their chances at a college degree.

One study involved almost 400 third-graders and found those with TV's in their bedrooms scored eight points lower on math and language tests as opposed to children without them.