STI prevention and control has widespread public health benefits. Left untreated, some STIs increase the risk of HIV transmission during unprotected sexual contact and lead to complications, such as pelvic inflammatory disease (PID), infertility, ectopic pregnancy, miscarriage, fetal death and congenital infections. Estimated STI-related mortality includes 200 000 fetal and neonatal deaths each year due to syphilis in pregnancy and over 280 000 cervical cancer deaths each year due to HPV
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