Quote:
Originally Posted by blueash
The Red Cross stopped routine testing for Covid in its donor samples in June. Do you have a link for your statement that they are reporting 90% now? If it were true it would be meaningless unless you also tell me what percent of donors report they have received at least one vaccination. I suspect, but do not know, that the kind of person who donates blood to a stranger, concerned with the health of others, might also be the kind of person who would get a shot to protect the community. |
Estimated US Infection- and Vaccine-Induced SARS-CoV-2 Seroprevalence Based on Blood Donations, July 2020-May 2021 | Infectious Diseases | JAMA | JAMA Network
"Findings In this repeated cross-sectional study that included 1 443 519 blood donation specimens from a catchment area representing 74% of the US population, estimated SARS-CoV-2 seroprevalence weighted for differences between the study sample and general population increased from 3.5% in July 2020 to 20.2% for infection-induced antibodies and 83.3% for combined infection- and vaccine-induced antibodies in May 2021. Seroprevalence differed by age, race and ethnicity, and geographic region of residence, but these differences changed over the course of the study."
Certainly higher now...