Study of Cholera Vaccination Impact and Clinical Surveillance in Endemic Areas of the Democratic Republic of the Congo

What this Trial Is About

Researchers are studying the impact of oral cholera vaccine mass campaigns in two locationsone urban and one ruralin the Democratic Republic of the Congo DRC. The goal is to understand how these vaccination efforts affect the control of cholera in areas where the disease is common and causes high mortality. This includes gathering key evidence to guide future cholera vaccine strategies in similar regions. The project includes three parts clinical surveillance to track cholera cases in selected hotspots, regular blood tests to detect recent cholera infections, and monitoring individuals who test positive for cholera bacteria, whether they show symptoms or not, including their household members. It focuses on assessing cholera incidence after vaccination campaigns and studying how long vaccinated and unvaccinated people shed the bacteria, as well as the spread within households. Participants will be patients attending selected cholera treatment centers and their household members if they test positive for cholera bacteria. Researchers will measure cholera transmission rates over two years, monitor bacterial shedding for up to one year, and analyze the genetic diversity of cholera strains. The study will develop sustainable monitoring methods to track the effectiveness of cholera control programs. Participation involves clinical evaluations and follow-up for up to two years.

Impact Study of Cholera Vaccination in Endemic Areas - Clinical Surveillance