I might mention that even back then people were suspicious of vaccines too, but it was bad and I remember people in the 50's seeing children dying or "crippled" by polio. Very few families were untouched. But there were requirements in place to get them that because of their experiences were willing to get and were grateful they were there. The WTS was anti-vax until 1952 when a Questions From Readers was printed. But the belief that the WTS forbid getting a vaccination still persisted until covid when the WTS saw the problem that could arise if they continued their ban and came out more clearly to jws that they should get the vaccination.
"Questions From Readers
● Is vaccination a violation of God’s law forbidding the taking of blood into the system?—G. C., North Carolina.
The matter of vaccination is one for the individual that has to face it to decide for himself. Each individual has to take the consequences for whatever position and action he takes toward a case of compulsory vaccination, doing so according to his own conscience and his appreciation of what is for good health and the interests of advancing God’s work. And our Society cannot afford to be drawn into the affair legally or take the responsibility for the way the case turns out.
After consideration of the matter, it does not appear to us to be in violation of the everlasting covenant made with Noah, as set down in Genesis 9:4, nor contrary to God’s related commandment at Leviticus 17:10-14. Most certainly it cannot reasonably or Scripturally be argued and proved that, by being vaccinated, the inoculated person is either eating or drinking blood and consuming it as food or receiving a blood transfusion. Vaccination does not bear any relationship to or any likeness to the intermarriage of angelic “sons of God” with the daughters of men, as described in Genesis 6:1-4. Neither can it be put in the same class as described at Leviticus 18:23, 24, which forbids the mingling of humans with animals. It has nothing to do with sex relations...."