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.
Unrooted phylogenetic tree based on nucleotide sequences of the CAstV capsid gene. The CAstV sequence identified in Nigerian turkey poults is indicated by an asterisk. Subgroup clustering of the serologically distinct CAstV A and B groups is shown (red colour)
