STDs still on the rise, report says

ATLANTA, Georgia (CNN) -- In spite of prevention efforts, new cases of some of the most common sexually transmitted diseases are going up, according to a new report from the Centers for Disease Control and Prevention.

The report, "Sexually Transmitted Disease Surveillance 2007," also said that women and minorities in particular are more likely to have sexually transmitted diseases, or STDs.

That fact isn't surprising, experts say, as studies on STDs in the past have also shown that women and minorities bear the greatest burden of STDs. The age of those affected hasn't changed much either -- nearly 19 million new sexually transmitted infections occur each year, and almost half of those affect 15- to 24-year-olds.