QUESTIONS
(1) I heard that with the Pfizer vaccine you're 80% protected within two weeks after the first shot and 95% after the second one. Johnson and Johnson is 75% protection with only one shot needed. If J&J is considered to provide enough protection, then why is a second shot of Pfizer needed?
(2) Officials were pushing J&J, saying that 75% protection is fine and you should get J&J if it's offered to you. BUT: One of the arguments for wearing a mask after you're vaccinated is that the vaccine isn't 100% protective. Doesn't that mean that Pfizer and Moderna (95% protection after second dose) IS actually more effective than J&J?
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