Prognosis

Vaccine Rollout Hits First U.S. Snags With Delays, Allergic Case

  • Health-care worker in Alaska was admitted to emergency room
  • Some doses for California, Alabama held up for being too cold
Covid Mutations Not Showing Increased Mortality: Johns Hopkins
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The first known allergic reaction to the Pfizer Inc. Covid-19 vaccine in the U.S. was reported in Alaska as some snarls began to emerge in the effort to send the shots across the country, highlighting the daunting challenges ahead for a historic immunization drive.

A health-care worker in Juneau, Alaska, with no history of allergies experienced flushing and shortness of breath 10 minutes after receiving a shot, the state health department said in a statement Wednesday.