Tag: vaccine waning

Preprint: Breakthrough SARS-CoV-2 infections in 620,000 U.S. Veterans – protection decreased from 92% to 54%

We compared SARS CoV-2 infection by vaccination status from February 1, 2021 to August 13, 2021 in the Veterans Health Administration, covering 2.7% of the U.S.  More...

Coronaheadsup.com America, B.1.617.2, Coronavirus, Delta, Healthcare, Herd Immunity, Hospitalization, Infection, Janssen, Moderna, Pfizer/Biontech, Revaccination, Testing, Transmission, USA, Vaccine, Vaccine Breakthrough, Vaccine Waning

UK: Why are 50% of Covid deaths fully vaccinated?

We’ll let Meaghan Kall, an epidemiologist with Public Health England, explain why 50% of UK Covid deaths are fully vaccinated:

 

 

So, what you are saying, Meaghan, is that a disproportionate number of over-50s are dying of Covid this year because so many are vaccinated?  More...

Coronaheadsup.com Astrazeneca, Coronavirus, Deaths, England, London, Moderna, Northern Ireland, Pfizer/Biontech, Scotland, UK, Vaccine, Vaccine Breakthrough, Vaccine Waning, Wales

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%.   More...

Coronaheadsup.com Alpha, Astrazeneca, B.1.1.7, B.1.617.2, Coronavirus, Delta, England, Europe, Infection, Northern Ireland, Pfizer/Biontech, Reinfection, Scotland, Transmission, UK, Vaccine, Vaccine Breakthrough, Vaccine Waning, Variants, Wales