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.
Kaplan‐Meier survival curves for patients who started ribavirin therapy at the URTI stage of infection (solid line), ribavirin therapy at the LRTI stage of infection (long dashed line), or no ribavirin therapy (short dashed line). There was no significant difference in survival rates between these groups (log‐rank test, P = 0.16)
