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.
Coverage of preventive STH chemotherapy in preschool-age children (Pre-SAC, blue) and school-age children (SAC, red), (a) internationally and (b) WHO African Region, calculated by WHO as the proportion of the total population of pre-SAC and SAC living in all the endemic areas in a country which require preventive chemotherapy for STH by year, 2003–2011[1].
