Scientists who helped develop the Pfizer-BioNTech Covid vaccine agree that a third shot is needed as immunity decreases
:strip_exif(true):strip_icc(true):no_upscale(true):quality(65)/d1vhqlrjc8h82r.cloudfront.net/04-21-2021/t_756d8e646dfb4efbb43963fe8fa268cb_name_image.jpg "Travel restrictions on the US-Canada border were extended until May 21, 2021")
:format(png):focal(1580x1335:1590x1325)/cloudfront-us-east-1.images.arcpublishing.com/gfrmedia/GSZ4JCU6VFDNHP5NXCBUN6KZ6U.jpg "What do I do if I lose my COVID-19 vaccination card?")
