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.
Population-averaged seroincidence among 100 unexposed (at risk) pigs per month in intervention villages compared with control villages. Error bars represent 95% confidence interval (CI). Accompanying table shows number of total samples and seropositive samples per round, total number of pig-months contributed, crude and population-averaged incidence, and the incidence rate ratio (IRR) and 95% CI for each time point relative to baseline in both intervention and control groups.
