Fever of Unknown Origin Attributable to Haematocolpos Infected with Salmonella enterica Serotype Typhi Resistant to Nalidixic Acid: A Case Report.

The prevalence of nalidixic acid-resistant Salmonella Typhi (NARST) infection is increasing worldwide. We are reporting an unusual case of infected haematocolpos presenting as urinary obstruction in a patient with fever of unknown origin (FUO). This case report highlights the importance of quinolone-resistant typhoid fever in the differential diagnosis of any acute febrile illness in countries, like India, where Salmonella infection is endemic.