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.
(A) The increase in the number of patients who received the vaccine and later were diagnosed with influenza and (B) their ratio to the total number of recorded vaccinations are statistically significant in 2008–2009 season compared to the previous seasons. (There were low numbers of EHR-recorded cases of vaccination during the 2004–2005 season, which is consequently seen in the large error-bars.)
