Which is what people like me used to wonder when they started the sub-forum. That certain topics would inevitably become quasi-political even if there was nothing political about them because, contrary to public opinion, almost everything becomes a function of the polis (the broad definition, not the city-state) at some point.
The most recent and most modernly comprehensive -- some say best -- book about the history of the societal arguments pro- and con- vaccination in America,
Pox by Michael Willrich, eventually leads us to a Supreme Court decision about forced inoculation. That's political.
See the editorial reviews, not the consumers' reviews:
https://www.amazon.com/Pox-American-History-Penguin-Life/dp/0143120786