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I am not sure how that percentage-wise efficiency was calculated.
But what impressed me was how fast this efficiency fades with time, becoming practically non-existent within 6 months.
I am not sure how that percentage-wise efficiency was calculated.
But what impressed me was how fast this efficiency fades with time, becoming practically non-existent within 6 months.
RE: The use of Janssen (Johnson and Johnson) COVID-19 vaccine is all but stopped by FDA order