Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
SapA mediates epithelial cell surface colonization by NTHI. Polarized epithelial cells grown at an air-liquid interface (A and B) were inoculated with the parent strain (C, E, and G) or the sapA mutant strain (D, F, and H) and incubated for 24 h. NTHI-epithelial cell interactions were monitored by scanning electron microscopy.
