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.
The influence of MEM-H(0) age on the ability of cell cultures to produce viruses evaluated by comparison of mumps virus titers (harvested from CEF) as well as measles and rubella virus titers harvested from MRC-5 maintained either in fresh (empty columns) or 9-month old (stored) (dashed columns) medium. Mean ± standard deviation from analyzed duplicates is given
