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.
Cartoon of human schistosome life cycles depicting adult worms, eggs of the three main human schistosomes, a miracidium, snail vector, cercariae, and schistosomula and showing the means by which and the points at which transmission can be controlled (red bars).
