Typhoid Fever: Tracking the Trend in Nigeria.

Typhoid fever continues to pose a serious health challenge in developing countries. A reliable database on positive blood cultures is essential for prompt interventions. To generate reliable data on serovar Typhi ( Typhi)-positive blood culture trends in typhoidal in Nigeria alongside changing contextual factors and antimicrobial resistance patterns, a retrospective cohort study was conducted in two hospitals in Lagos between 1993 and 2015.