KNTV NBC Nightly News With Lester Holt December 19, 2021 01:38:00
Omicron is, is still in flux. >> reporter: there is some preliminary data that suggests it could be mild. first, early lab studies have found omicron may not attack the lungs like other variants. >> omicron replicates, multiplies in the upper airway and less well in the lung >> reporter: second, in south africa where omicron first took off, the headlines this weekend are stoking optimism hospitalizations are down 91% >> we can say one thing, it's not more severe what they have seen in south africa is they have had lower rates of hospitalization almost 1/3 less hospitalization than with the del...
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