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.
Transmission electron micrograph of duodenal epithelium from an HIV-infected patient heavily parasitized with Enterocytozoon bieneusi. Several cells are infected with merogonic and sporogonic stages, and one cell is infected with darkly staining spores. Magnification, ×6,600.
