FIG. 3.
Electron micrographs of U937 macrophages (A) and A. polyphaga (B) infected by L. pneumophila (strain AA100) at 24 h. The infection is very similar in both host cells. Legionella is cytoplasmic at 24 h in the two panels.
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.