Rates of syphilis infection have increased in the United States for the seventh year in a row, government researchers reported Wednesday. The increase in the cases is largely attributed by cases among gay and bisexual men.

According to a report by the federal Centers for Disease Control and Prevention, too few gay men are getting recommended annual screenings for syphilis and other sexually transmitted diseases. The CDC recommends that gay and bisexual men be tested for syphilis and other STDs at least once a year

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

Bad blood, literally, may have come between British and American soldiers who fought side-by-side in Iraq and Afghanistan. Eighteen British soldiers appears to have received contaminated blood transfusions between 2001 to 2007 from U.S. troops.

The blood transfusion happened during emergency treatment of the British soldiers. But lack of proper screening and poor record keeping may have exposed the Britons to infectious virus like HIV, hepatitis or syphilis

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)