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.
Flowchart of individuals with influenza-like illness presenting at the 2018-2019 sentinel primary care clinics in Israel, with the exclusion of individuals not eligible to be included in the vaccine effectiveness analysis. Asterix symbol (*) denotes the inclusion of four samples coinfected with influenza A (H1N1)pdm09 and influenza B.
