How do COVID-19 vaccines work?
The Moderna and Pfizer-BioNTech COVID-19 vaccines are messenger RNA vaccines (mRNA). mRNA provides the instructions your body needs to build a small protein that triggers an immune response to COVID-19 if you become infected.
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Recent Vaccine Updates
Black nurses bring vaccine to community centers, churches to target under-served people
The San Diego Black Nurses Association has vaccinated more than 1,100 in southeastern San Diego to address disparities.