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.
Geographic distribution of PHEV seropositive sows (overal invididual prevalence by state) in the United States. The map indicates the percentages of PHEV-seropositive sows detected by state. The table indicates the total numbers evaluated and percentages of positive sows by state with the 95% confidence intervals (CIs).
