Does the COVID-19 vaccine lose its effectiveness over time and will it need to be taken annually as the flu vaccine?
:strip_exif(true):strip_icc(true):no_upscale(true):quality(65)/cloudfront-us-east-1.images.arcpublishing.com/gmg/PCX7C45DO5GZRP6RBBTOQWQW3M.jpg "Does the COVID-19 vaccine lose its effectiveness over time and will it need to be taken annually as the flu vaccine?")
