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.
Minimum routine immunization coverage with 3 doses of OPV in the undervaccinated subpopulation required to interrupt serotype 1 wild poliovirus transmission in both subpopulations as a function of (i) the relative size of the undervaccinated subpopulation (y-axis) and (ii) the extent of preferential self-mixing (quantified by Pwithin, see legend). The model assumes that routine immunization coverage in the general population remains constant at 0.95.
