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.
One-step growth curves for various dual-cre polioviruses. HeLa R19 cells were infected with virus derived from wt and mutant poliovirus cDNA plasmids, and the virus yield was determined at the indicated time points (see Materials and Methods).
