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.
The estimated coefficients with two standard errors of the three predictors for villages having no case at the same village (top), in the neighboring villages (middle) in the previous 30 days and population density (bottom). Black color indicates the estimation is not statistically significant (p≧0.1). Blue color indicates the estimation is marginally significant (0.05≦p < 0.1). Red color indicates the estimation is statistically significant (p < 0.05).
