关于covid疫苗的两个问题

1 是不是Pfizer BNT疫苗是现在有效性最高，防治印度英国变异最好，而不良危害案例最少的疫苗？ 2 Rutgers University infectious disease specialist Dr. Kapila，打的是哪家的疫苗？应该不是Pfizer BNT疫苗吧？

ABCNEWS: "Rajendra Kapila's wife, Dr. Deepti Saxena-Kapila, told the Hindustan Times that he had received both Pfizer vaccine doses in the U.S. before heading to India."

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