Risk factors for measles among infants in Tianjin, China

Abstract Objectives Infants aged Study design Case-control study. Methods Cases were enrolled from a surveillance system, and IgG-negative controls were sampled from registries at immunization clinics. A logistic regression model assessed for risk factors. Results Among 82 cases and 485 controls, exposure to a municipal hospital (OR [odds ratio]: 5.21; 95% confidence interval [CI]: 1.19–22.82) or a specialty hospital (OR: 13.22; 95% CI: 6.13–28.51) was associated with the disease, whereas visiting a township or district hospitals was not associated with increased odds of measles. Conclusions Hospitals were an important focal point of measles transmission for infants. Hospitals, particularly higher-level municipal and specialty hospitals, should enforce infection control programs to separate infants with highly communicable diseases to prevent transmission.