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发表于 2021-9-1 15:19:19
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# E+ F0 W4 S. H- @, @, W q4 PPfizer三周是当时疫苗做临床试验的时候定下的,各种数据也是以这个间隔为标准施打后得出的。理想情况下是三周,延长间隔也是后面一边打一边得出的结论吧。这是美国CDC的建议:You should administer the second dose as close as possible to the recommended interval of 21 days after dose 1. However, if it is not possible to follow the recommended interval, you may schedule the second dose of the Pfizer-BioNTech COVID-19 Vaccine for administration up to 6 weeks (42 days) after the first dose. There are currently limited data on effectiveness of mRNA COVID-19 vaccines administered beyond this window. If the second dose is administered after these intervals, there is no need to restart the series. https://www.cdc.gov/vaccines/cov ... -bioNTech-faqs.html k6 H+ N. Z0 H$ n" Z2 D) Y
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