The MIDAS Webinar Series features research by MIDAS members, and is open to the public.
Date: Friday, October 31, 2025
Speaker: Nasif Hossain, PhD
Topic: Spatiotemporal variation in risk of Campylobacter infection in childhood: a global risk mapping and prediction model using individual participant data
Abstract: Campylobacter is a leading cause of childhood diarrheal illness worldwide. This study developed a global risk mapping and prediction model for Campylobacter infection in children under five, using individual participant data from 30 studies across 28 LMICs (>70,000 samples). Infection risk increased with higher wind speed, solar radiation, and precipitation, while surface pressure and soil moisture had U-shaped effects. Unimproved and groundwater sources elevated infection risk, whereas improved sanitation reduced it. High-risk regions included sub-Saharan Africa, South America, and South and Southeast Asia. Results highlight environmental and infrastructure influences, guiding water, sanitation, and vaccine interventions.
Bio: Dr. Nasif Hossain is an environmental epidemiologist whose research examines how climate variability influences the transmission of infectious diseases. His work integrates statistical modeling, epidemiology, and climate science to inform data-driven public health strategies. Currently, his research focuses on how environmental conditions influence child diarrheal pathogens and infections in low- and middle-income countries. More information is available at https://sites.google.com/view/nasif-hossain/home.