24 December 2020

• A Turkish infectious disease expert, Dr Serhat Unal, reports on results from a trial of Sinovac’s coronavirus vaccine; of 1,322 participants (570 of whom received placebo), efficacy was 91.25 percent; no additional data was provided, nor has it been published. Source
• Chile, Costa Rica and Mexico begin vaccination campaigns with the Pfizer/BioNTech coronavirus vaccine. Source
• A doctor in Boston with a severe shellfish allergy experiences the first known severe allergic reaction to Moderna’s coronavirus vaccine within minutes of receiving it; he recovered after using his own autoinjector and treatment in the Emergency Department. Source

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