By vgreene, 7 January, 2021 An NEJM study found that the Pfizer BioNTech vaccine s protection only reached 52 efficacy 10 days after the 1st dose but increased to 95 after the 2nd dose 2 However the Pfizer Moderna studies didn t check for asymptomatic cases in vaccinated pts so it s
By vgreene, 7 January, 2021 Protection from the vaccine isn t immediate it takes 1 2wk after the 2nd dose to be considered fully vaccinated CDC That means it s possible a person could be infected w COVID 19 just before or just after vaccination get sick because the vaccine hasn t ha
By vgreene, 7 January, 2021 All but 1 of the COVID 19 vaccines being studied in the U S require 2 shots The 1st shot builds protection but everyone has to come back 3 4wk later depending on the vaccine for the 2nd dose to get the most protection that the vaccine can offer CDC
By vgreene, 7 January, 2021 Unfortunately we don t know exactly how long protection lasts for those who get infected or those who are vaccinated Current evidence suggests reinfxn is uncommon in the 90 days after initial infxn It s possible that coronavirus vaccinations will become a
By vgreene, 7 January, 2021 As tested in large clinical trials the Pfizer BioNTech COVID 19 vaccine had 95 efficacy in preventing symptomatic COVID 19 and the Moderna COVID 19 Vaccine mRNA 1273 had 94 5 efficacy in preventing symptomatic COVID 19 The trials didn t check for asymptom
By vgreene, 7 January, 2021 Both mRNA vaccines currently available in the U S and authorized for emergency use by the FDA have comparable efficacy rates good safety profiles so far 1
By vgreene, 7 January, 2021 Can I get COVID 19 after the 1st dose of the vaccine How long will the protection last
By vgreene, 7 January, 2021 To date no cases of GBS have been reported following vaccination among clinical trial participants
