Emergency Preparedness and Response

illustration of stylized network of people

Disease outbreaks are a common public health problem and investigating them can be challenging because many pathogens can cause them. Implementing appropriate control measures depends on finding a cause (etiology). However, diagnostic test results are often missing or difficult to interpret, or an appropriate diagnostic test may be unavailable locally.

This website provides information and resources to help public health professionals and partners investigate unexplained respiratory disease outbreaks (URDO).