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.
Ig fractions were separated from an OF pool showing little if any IgA response (s/p IgA: 0.63; s/p IgG: 1.54). These IgA-low fractions exerted by far less or no antiviral activity on strains 009/8, 377 and 957, compared with the IgG fraction, whereas strain 433/5 replicated very poorly (P< 0.1, tendency).
