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.
Keywords used in search strategy
| OR | OR | AND | OR | |
|---|---|---|---|---|
| vaccination | vaccin* | hesitancy | Parent | child |
| immunisation | immuniz* | refusal | Caregiver | children |
| immunisation | immunis* | denial | Guardian | childhood |
| prevention and control | rejection | |||
| Anti-vaccination | ||||
| Anti-vax | ||||
| anti-vax |
