Protection by natural cholera against later episodes of cholera over 10 years of follow-up in Matlab, Bangladesh: a retrospective cohort study.

ABSTRACT:

Background

Patients with cholera have been shown to be protected against subsequent cholera for 3 years after their initial episode. We aimed to assess protection at 10 years of follow-up.

Methods

In this retrospective cohort study, cohorts of patients treated for cholera (index patients) and contemporaneously selected age-matched individuals without cholera (controls), randomly selected from the population of Matlab, Bangladesh, were assembled between 1990 and 2009 and followed for up to 10 years. Selection of participants who had no history of cholera in the 5 years before selection proceeded in secular sequence, and selection was done without replacement. Protection against subsequent treated cholera was assessed in proportional hazards models and waning of protection was

SUBMITTER: Hoque M 

PROVIDER: S-EPMC11876100 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature