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.
(a) Intensity of R18-labeled viruses in droplets over time. (b) Fusion rate as a function of pH. At low pH, the rate is nearly independent of pH. At high pH values, the fusion rate decreases with the increase in pH. Lines are a guide to the eye. (c) Time profiles of fluorescence intensity from R18 labeled viruses compared for viral fusion assays in the presence (red) and the absence (blue) of antibody.
