**4. Prognosis**

Antibiotic therapy is 95% effective as a first-line treatment. If treatment is started early and fully completed, the prognosis is good. Although treatment failure with first-line treatments is quite rare, recurrences may occur with alternative treatments. Reinfection is very frequent, either because the partner is not treated or because it is reacquired from a new partner. Therefore, treatment of all possible sexual partners is mandatory.

Abscess rupture due to salpingitis and progression to tubo-ovarian abscess and death due to peritonitis are rare. Chlamydia is an indirect cause of ectopic pregnancyrelated deaths. Death due to ectopic pregnancy caused by chlamydia is more likely than deaths due to tubo-ovarian abscess.
