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Expert says COVID still can't be treated like the flu
02:58

Wu Zhiwei, director of the Center for Public Health Research at the Medical School of Nanjing University, says that we have to be careful in our understanding of "herd immunity," because coexisting with the virus also depends on everyone's individual immunity. Dr. Kate Tulenko, founder and CEO of Corvus Health, agrees with his points. She believes that COVID is more infectious than the flu, so we need to behave differently.

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