FRIDAY, May 18 (HealthDay News) -- Female athletes take longer to recover from concussions, a new study says.

SATURDAY, May 19 (HealthDay News) -- More than 4.7 million Americans are bitten by dogs each year, and more than half of those victims are younger than age 14, experts say.

The Centers for Disease Control and Prevention proposed new recommendations regarding testing for hepatitis C. The recommendations were released in advance of the CDC's first "Hepatitis Testing Day" today.

Fresno, Calif.-based Organic Pastures passed the most recent health inspections brought on by a finding of "harmful bacteria in samples of butter, cream and cow manure," the Los Angeles Times reports.

U.S. stocks fell on Friday after a sloppy debut by Facebook Inc spoiled hopes that a spectacular open for the most-anticipated stock sale in years would brighten the mood in what has been a gloomy month for equity markets. Shares of Facebook, the social networking giant, were volatile in the busiest day ever for a trading debut. After early gains of more than 10 percent, Facebook shares fell back to the $38 issue price, ending up just 0.6 percent at $38.23. It was the Nasdaq's most actively traded stock, with more than 566 million shares traded. ...