Chlamydia and congenital syphilis: the sexually transmitted infections that challenge the stabilization of the rest

The latest report from the National Epidemiological Surveillance Network indicates a slowdown in the rising trend of sexually transmitted infections (STIs) in 2025. Gonococcal and syphilis infections show signs of stabilization, while Chlamydia trachomatis continues to rise. In 2025, there were 37,467 reported cases of gonorrhea, predominantly affecting men aged 25 to 34. Syphilis cases reached 11,879, with a notable increase in older age groups. Congenital syphilis remains present with 10 confirmed cases. Chlamydia is the most common STI, with 44,511 cases, particularly affecting women under 25. Lastly, 1,824 cases of lymphogranuloma venereum were reported, primarily in men.