Back to the Future?

[Click on image to enlarge and clarify]

UCLA and other research centers are asking for donations of blood products - in this case of recovered coronavirus patients - to see if they can provide immunity to others.

Those persons who have recovered and wish to donate can go to:

https://uclahs.az1.qualtrics.com/jfe/form/SV_dmPFAvmaHTg4PdP

for more information.

The photo is from "The clinical trials on gamma globulin for polio: victims of marketing success" available at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5524579/. There were experiments with gamma globulin - a blood product - as a possible source of immunity to polio in the 1950s, prior to the development of a vaccine.