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) Rates of influenza and percentage of vaccine coverage among Italian elderly during influenza seasons 2005–17 (sources: Italian National Institute of Health and Ministry of Health) (B) Scatter-plot (and regression lines) of the overall influenza rates among Italian elderly during influenza seasons 2005–17 vs. the percentage of elderly that were vaccinated for influenza
