Tag: vaccine effectiveness

Symptomatic Delta Covid infection rate far higher in fully vaccinated healthcare workers

“..our data suggest that vaccine effectiveness against any symptomatic disease is considerably lower against the delta variant and may wane over time since vaccination.”  More...

Coronaheadsup.com B.1.617.2, California, Coronavirus, Delta, Genome, Healthcare, Hospitalization, Infection, Moderna, PCR, Pfizer/Biontech, Testing, Transmission, USA, Vaccine Breakthrough, Vaccine Waning

Israel: Pfizer vaccine effectiveness against coronavirus infection has dropped to just 64%

From June 6 – five days after the abolition of all coronavirus restrictions in Israel – until Tuesday, the effectiveness of the [Pfizer] vaccine against corona infection dropped to only 64%.  More...

Coronaheadsup.com B.1.617.2, Children, Coronavirus, Delta, Health, Infection, Israel, Pfizer/Biontech, Reinfection, Science, Side Effects, Testing, Transmission, Vaccine, Vaccine Breakthrough

UK: government risk assessment of coronavirus Delta variant B.1.617.2 – evidence of frequent vaccine failure or decreased effectiveness in humans * UPDATED *

  • UPDATED IMAGE ABOVE
  • * UK risk assessment for Delta variant as per 10th June 2021

 

Previous UK risk assessment as per 3rd June 2021

The UK government risk assessment for B.1.617.2 Delta variant has been published today and it’s NOT good news.  More...

Coronaheadsup.com Alpha, Astrazeneca, B.1.1.7, B.1.617, B.1.617.2, Coronavirus, D614G, Delta, Europe, Health, Infection, Janssen, L452R, Moderna, Mutation, P681H, Pfizer/Biontech, Science, T478K, Transmission, Vaccine, Vaccine Breakthrough