Fig. 2.
Flow diagram showing case selection for vaccine effectiveness analysis, Australia, 2006–2012
ACIR, Australian Childhoon Immunization Register; NNDSS, National Notifiable Diseases Surveillance System.
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.