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CDC Limits Review of Vaccinated but Infected; Draws Concern

Updated on
  • Little is known about tiny number of Covid breakthrough cases
  • CDC shifts strategy in May to focus only on hospitalized, dead
World Turns to China for Vaccines

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Federal health officials this month decided to limit how they monitor vaccinated people who have been infected with Covid-19, drawing concern from some scientists who say that may mean missing needed data showing why and how it happens.