Quote:
Originally Posted by Anthony
Absent a remarkable lack of curiosity, it's hard to avoid noticing bacteria once you have microscopes. Viruses are harder to detect, but the basics of epidemiology are "these people all got sick, what do they have in common", and that sort of analysis is broadly applicable.
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It's also worth remembering that the final proof of germ theory OTL wasn't motivated by people getting sick, but by *grape vines* getting sick. A problem which cost serious money year after year, providing ongoing motivation for research. And of course it's much easier to do experiments on plants.