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.
Quantitation of replicate mixtures. Replicate testing using mixtures of 2, 3, 5 and 10 serotypes. Replicates were cultured for 2, 4, 6 or 8 h before selection for sequencing.