UK Covid app confirms vaccines are waning
Joinzoe: “We found that initial protection against infection a month after the second dose of the Pfizer vaccine was 88%, while after five to six months this fell to 74%. For the AstraZeneca vaccine, there was around 77% protection a month after the second dose, falling to 67% after four to five months.
This analysis included:
- 411,642 test results from users who were doubly vaccinated with the Pfizer mRNA vaccine at the time of the infection
- 709,486 test results from users who were doubly vaccinated with the AstraZeneca vaccine
- 76,051 test results from users who were not yet vaccinated at the time of the infection
We found that initial protection against infection a month after the second dose of the Pfizer vaccine was 88%, while after five to six months this fell to 74%.”
Professor Tim Spector, lead scientist at the ZOE COVID Study, says:
“A reasonable worst-case scenario could see protection below 50 percent for the elderly and healthcare workers by winter. With high levels of infection in the UK, driven by loosened social restrictions and a highly transmissible variant, this scenario could mean increased hospitalisations and deaths.
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