Where do harmful bacteria in cystic fibrosis homes come from?

Researchers want to understand where non-tuberculous mycobacteria (NTM)—harmful bacteria that can infect the lungs—come from in people with cystic fibrosis. This study will collect samples from homes (water, dust, and soil) and compare households where people have had these infections with households where they haven't, to see if home environments play a role in who gets infected.

Many people with cystic fibrosis develop these bacterial lung infections, but doctors don't fully understand why some patients are affected and others aren't. If researchers can identify whether household water systems and other environmental sources are spreading these bacteria, they can develop better ways to prevent infections.