The number of cases of syphilis in the United States jumped 10 percent from 2012 to 2013, with gay and bisexual men accounting for 75 percent of the increase, U.S health officials reported Tuesday.
Rates of another sexually transmitted disease — chlamydia — fell for the first time in 30 years, with more than 1.4 million reported cases in 2013. This represented a 1.5 percent decrease from 2012, according to the U.S. Centers for Disease Control and Prevention.
“There are over 20 million cases of sexually transmitted diseases [STDs] every year in the United States, and they continue to pose a risk of lifelong complications for millions of Americans,” said Dr. Jonathan Mermin, director of CDC’s National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention.
According to the report, 17,357 cases of syphilis were reported in 2013 — a rate of 5.5 per 100,000 people.
There are a variety of reasons that put gay and bisexual men at high risk for syphilis, said Mermin.
“Some are the high number of sexual partners and sexual networks that create a vicious cycle where the prevalence of syphilis is higher. And that leads to higher incidence, which leads to higher prevalence, and that cycle can increase the frequency of infection,” he said.
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