My hair is black history shirt

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Several scientists in both the My hair is black history shirt US and UK have already proposed that second doses be delayed to 12 weeks rather than 3-4 weeks in order to increase the first dose. Getting only one dose does provide partial immunity (52.4% efficacy for Pfizer-BioNTech, but this may increase to over 85% after 10 days or more) but not the full >94% provided by the second dose. It is also unknown if the protection provided by the first dose will be long-lasting without the second dose the study only monitored for 21 days.Delaying second doses is a wager that, in the setting of such severe shortages and limited data, getting more people partially immunized quickly will have better outcomes compared to getting fewer people immunized fully.

My hair is black history shirt

Buy this shirt:  My hair is black history shirt

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