CDC Data & Statistics | Feature: Chlamydia and Gonorrhea — Two Most Commonly Reported Notifiable Infectious Diseases in the United States

Chlamydia and Gonorrhea — Two Most Commonly Reported Notifiable Infectious Diseases in the United States

The Sexually Transmitted Disease Surveillance 2008 Report provides national surveillance data for the reportable sexually transmitted diseases (STDs) chlamydia, gonorrhea, and syphilis.

There were more than 1.5 million total cases of chlamydia and gonorrhea reported to CDC in 2008—making them the two most commonly reported notifiable infectious diseases in the United States. Adolescent girls and young women are especially hard hit by these two diseases. The largest number of reported cases of both chlamydia and gonorrhea in 2008 was among girls between 15 and 19 years of age, followed closely by young women 20 to 24 years of age. This likely reflects a combination of factors, including biological differences that place females at greater risk for STDs than males, as well as higher STD screening rates among young women.

Syphilis—a disease once on the verge of elimination—began re-emerging as a public health threat in 2001. This is primarily because of a resurgence of the disease among men who have sex with men (MSM), though cases among women have also been increasing in recent years.

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CDC Data & Statistics | Feature: Chlamydia and Gonorrhea — Two Most Commonly Reported Notifiable Infectious Diseases in the United States