KGO ABC World News Tonight With David Muir December 2, 2021 23:40:00
>> reporter: but dr. hoge today sounding more optimistic about his companys mrna vaccine than modernas ceo stephane bancel did just days ago, saying there was, quote, no world in which vaccine effectiveness doesnt drop against this new variant. >> i probably would have used different words. there is a scenario that the current vaccines wouldnt be by themselves sufficient to get the same high level of efficacy, but that doesnt mean that they wouldnt work at all. >> all right, so, lets get to mart...
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