One in four American teenage girls has at least one common sexually transmitted disease (STD), the new study said Tuesday. It is the first study carried out by the U.S. Center's for Disease Control (CDC) that examines the combined national prevalence of common STDs among adolescent women in the United States.

CDC says that at least 3.2 million teens aged 14 to 19 are currently infected. This accounts for 26 percent of the total girls that have human papilloma virus, chlamydia, genital herpes or trichomoniasis

Sex-related diseases affected British youth ages 16-24 the most in 2006, the Health Agency (HPA) said, warning of a continuing epidemic of HIV and sexually transmitted infections in gay men.

In 2006, over 370,000 new sexually transmitted infections were diagnosed - up 2.2 percent on 2005, the HPA said Friday

More than 1 million cases of chlamydia were reported in the United States last year, the Center for Disease Control and Prevention reported Tuesday. It is an all-time record for any sexually transmitted disease in the U.S.

About three-quarters of women infected with chlamydia have no symptoms. Although it is easily cured if treated early, when left untreated, the infection can lead to a host of medical problems, including infertility

China's Ministry of Health on Monday revealed that some 1,326 people across the region died of infectious diseases between the months of September and October this year, with 660 and 666 recorded deaths respectively.

The Ministry has identified three classes of infectious diseases such as Class A (plague and cholera), Class B (25 infectious diseases including viral hepatitis) and Class C (10 infectious diseases such as influenza)

On Thursday the Centers for Disease Control and Prevention reportedly began urging doctors on Thursday to stop using fluoroquinolones for the treatment of gonorrhea, as the disease has developed a resistance to it. It also added that doctors should switch to cephalosporins, a different class of antibiotics, to treat everyone.

Expressing its concern over a rise in fluoroquinolone-resistant gonorrhea, CDC has urged doctors to use antibiotics such as Cipro, Rocephin Floxin, and Levaquin for the treatment of gonorrhea