KGO ABC World News Tonight With David Muir October 13, 2021 22:37:00
Johnson, determining that no matter the booster, all study participants saw a substantial uptick in antibody levels after a booster shot. and for those who got the johnson & johnson shot, the study finding antibody levels were higher if they followed it up with moderna or pfizer versus j&j. >> while this is really exciting, it's based on very small sample sizes. so it gives us a window into, you know, data that we'll see over the coming weeks. >> reporter: but antibodies are only one part of immune protection, and the study did not measure precisely how well each booster protected a person. mi...
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