Sexually transmitted infections (STIs) are more common than many people realize. The World Health Organization estimates that more than 374 million new STIs occur each year worldwide, and chlamydia ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The bacteria that causes chlamydia, a common sexually transmitted ...

Amid rising rates of syphilis and congenital syphilis, many Americans didn’t know how it can be prevented and treated.

Sexually transmitted infections, or STIs, include both sexually transmitted diseases, known as STDs, and the many infections that don’t progress to disease. STIs are caused by more than 30 different ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Chlamydia and gonorrhea are on the rise in New York City, a new report ...

Chlamydia is one of the most commonly diagnosed sexually transmitted infections (STIs) in the UK, yet its symptoms often remain unnoticed. Known as a “silent” infection, it can go undetected for weeks ...

While data from the Centers for Disease Control and Prevention (CDC) show that the total number of U.S. cases of three ...