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.
Distribution of respiratory syncytial virus (RSV) types and RSV genotypes in infants with RSV bronchiolitis from 2004 to 2011. A, The horizontal (x) axis represents the study years and the vertical (y) axis the percentage of RSV A and B isolates. B, The horizontal (x) axis represents the study years and the vertical (y) axis the percentage of RSV A and B genotypes. Abbreviation: NT: nontyped.
