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.
Contribution of individual viruses to the variability in ED visits and hospitalizations with RTIs (A), COPD (B) and Asthma (C) for 5 viruses over an 11-year period (Period A). Values on y-axis represent the standardized beta values. Where there was no contribution of virus at reducing the variability in a multivariate model, a value of 0 was assigned.
