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.
Tree is unrooted, and is shown here with a mid-point root for visualization only. Susceptible haplotypes are represented by v+number. Numbers at nodes represent the bootstrap values (%); only bootstrap values greater than 50% are shown.
