An official website of the United States government
Here's how you know
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.
Neutralization of lab-adapted SIVmac251 by macaque sera after the first vaginal challenge. Neutralizing-antibody assays were carried out over 10 weeks postchallenge as described in Materials and Methods.