New data shows that antibodies surge several weeks after receiving the fourth dose. ABC News’ Dr. Jen Ashton explains how long they might last. SUBSCRIBE to GMA3’s YouTube page: https://bit.ly/3kNlst8 VISIT GMA’s homepage: https://abc.com/shows/gma3-what-you-need-to-know FOLLOW GMA3: Facebook: https://www.facebook.com/abcgma3 Twitter: https://twitter.com/abcgma3…
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