From the same article on pandemics, fascinating references:
Tzitz Eliezer vol. 9 28:3 – if you can spend same amount of vaccine on 100 old OR 1000 young patients saving, on average, same number of lives. for older people, you reduce chance of dying, for young – eliminate completely. We give vaccine to younger – claim for certain saving is higher than uncertain.
based on Pri Megadim Siman 328 in the Mishbatzot Zahav
Tzitz Eliezer 9:17 a physician should put himself in danger in order to stop an epidemic and save
more lives, as opposed to the regular situation where a physician is prohibited from placing his life in danger
Rabbi Daichovsky told the author, we must vaccinate the super-vectors, a.k.a. young children, because they are considered Rodfi m, one who pursues another individual to kill him. we vaccinate health care workers before anyone else. This is because health care workers are needed to fight the epidemic