NIAID supports research to understand, diagnose, and treat many of the world’s most intractable and widespread diseases. Explore NIAID research through the diseases and conditions as well as the cross-cutting disciplines and approaches below.
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Infectious Diseases
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Gonorrhea
NIAID supports a comprehensive, multidisciplinary program of research on N. gonorrhoeae that includes basic research on pathogens, improved diagnostics, preventive vaccines, and additional alternative treatments.
Chlamydia
Chlamydia is a common sexually transmitted infection that can cause cervicitis in women and urethritis and proctitis in both men and women. NIAID and NIAID-supported researchers are studying how Chlamydia trachomatis bacteria causes disease and developing a vaccine to prevent C. trachomatis infection.

Urethritis
Urethritis refers to infection and inflammation of the urethra. Urethritis is a condition that can result from infection with common STI pathogens including N. gonorrhoeae, C. trachomatis, T. vaginalis.