Apr 15th, 2021, 16:25 | #1 |
Senior Member
注册日期: Jan 2009
帖子: 2,622
|
COVID-19疫苗可能需要每年接種
輝瑞公司的首席執行官說,人們在完全接種疫苗後的12個月內可能“需要”加強劑量的COVID-19疫苗。阿爾伯特·布爾拉(Albert Bourla)在2週前發表了評論,但直到今天才公開發表。布爾拉還說,可能的人將需要每年接種一次疫苗。
|
|
Apr 15th, 2021, 17:03 | 只看该作者 #3 |
Senior Member
注册日期: Jun 2006
帖子: 4,501
声望: 1177764
|
消息说证实的保护期只有6个月吧。半年后的保护作用只有一半多些。 "PFIZER AND BIONTECH CONFIRM HIGH EFFICACY AND NO SERIOUS SAFETY CONCERNS THROUGH UP TO SIX MONTHS FOLLOWING SECOND DOSE" https://www.pfizer.com/news/press-re...and-no-serious 6个月后,年轻与中年人的抗体水平下降到67%,71岁以上老人下降到53%。 "while levels ("titers") of antibodies averaged over 92,000 in vaccinated people aged 18 to 55 at six months after full immunization, they dropped to an average of about 62,000 in people aged 56 to 70, and to just over 49,000 in people aged 71 and older." https://medicalxpress.com/news/2021-...ne-months.html |
|