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.
Human colonic spirochetosis. Spirochetes attach end-on to the colonic epithelium, as demonstrated by electron microscopy. This image is from the landmark 1967 publication by Harland and Lee (3) and is reprinted with permission from the publisher. Arrows indicate microvilli. S, spirochetes; V, reactive vacuole. Bar = 1 μm.
