A new study from Public Health England shows that both the Pfizer and AstraZeneca vaccine work well from the first dose. If that sounds familiar it’s because the results are similar to those found in Scotland. The results cover all adults in England aged 70 years and older (over 7.5 million people).
Vaccination with either a single dose of BNT162b2 or ChAdOx1 COVID-19 vaccination was associated with a significant reduction in symptomatic SARS-CoV2 positive cases in older adults with even greater protection against severe disease [approximately 80% effective at preventing hospitalisation, AT] . Both vaccines show similar effects. Protection was maintained for the duration of follow-up (>6 weeks). A second dose of BNT162b2 provides further protection against symptomatic disease but second doses of ChAdOx1 have not yet been rolled out in England. There is a clear effect of the vaccines against the UK variant of concern.
Score three for the land of Reverend Bayes: first doses first, approve AstraZeneca, approve AstraZeneca for the elderly.
The US FDA is not following the science.