Recent data from Limeira and Santa Bárbara D'Oeste in São Paulo, Brazil, has shown an increase in the incidence of sexually transmitted infections (STIs) in 2025. Limeira recorded 314 cases, representing a 10.5% rise from 2024, while Santa Bárbara D'Oeste reported 522 cases, up 5.8% from the previous year. These statistics, sourced from local health departments and reported by EPTV, a Globo Network affiliate, highlight an alarming trend as these infections often surge during the festive Carnival period.

Health officials have particularly noted the rising cases of several serious infections, including syphilis, HIV, gonorrhea, chlamydia, genital herpes, HPV, and viral hepatitis B and C. Symptoms can include vaginal or urethral discharge, sores, itching, and painful urination or sexual intercourse. The increase in cases calls for heightened awareness and preventive measures to combat the spread, especially during Carnival, when social interactions and higher risk behaviors traditionally increase.

Integrative gynecologist Monique Mion Bürguer emphasized the importance of using condoms as a critical preventive tool against STIs. The silent nature of many STIs often leads to individuals being unaware of their infection status, which can further exacerbate the infection rates. The current situation underscores the need for effective public health strategies to educate the public, encouraging safer sexual practices to safeguard health while enjoying festive occasions like Carnival.