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.
Maximum Clade Credibility tree of the Brazilian lineage inferred from the 27 003 trees produced by beast after removing burnin, showing the estimated date of the emergence of the Brazilian lineage to be around 2003. The colours show the state from which the isolates were collected.
