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.
Growth kinetics and plaque formation in tissue culture. Graphs show multiple-step growth curves of the parental rBC and mutant viruses on DF1 (A) or Vero (B) cells. Values are from two independent experiments, each performed in triplicate. Bars show standard deviations. (C) Plaque morphology on DF1 cells by the parental rBC and mutant viruses at 3 days postinfection.
