In a race toward herd immunity, improving vaccine uptake is top of mind for public health officials.
I appreciate that it has a call to action," Limaye says.
They must also believe there is a threat to nudge them to act.

Courtesy of Ad Council
So if you could, you should get the COVID-19 vaccine when you’re eligible.
Campaigns like these help emphasize that getting the vaccine is the only way to return to pre-pandemic normalcy.
Time will tell how it measures up.
For the most recent updates on COVID-19, visit ourcoronavirus news page.
World Health Organization.WHO press conference on coronavirus disease (COVID-19) - 11 January.
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Wood S, Schulman K.Beyond politics Promoting Covid-19 vaccination in the United States.N Engl J Med.
2021;384(7):e23.