| Tv | Titer of virus |
| Ta | Titer of supernatant from adsorption study |
| Td | Titer of supernatant from desorption study×10 (dilution factor) |
| Ti | Titer of clay/virus complex from infectivity study |
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.