| Auch 2. Biontech-Impfung wirkt nach 12 Wochen stärker |  |
"A study led by the University of Birmingham in collaboration with Public Health England found that antibodies against the virus were three-and-a-half times higher in those who had the second shot after 12 weeks compared with those who had it after a three-week interval.
[https://www.theguardian.com/science/2021/may/14/delay-in-giving-second-jabs-of-pfizer-vaccine-improves-immunity]
Wobei natürlich 200 SeniorInnen auch keine allzu große Testgruppe bilden.