NOTE: If someone linked you to this article claiming that it shows that vaccines did not help fight infectious disease, they are wrong—and they didn’t read this article

The bottom line is that sanitation—pest control, water filtration and chlorination, safe sewage disposal, milk pasteurization and other food safety, and public education about general hygiene—probably did more than anything else to reduce mortality rates, if only because these techniques were available decades, and in some cases centuries, before anything else. Antibiotics were dramatically effective when they were finally introduced, but by this point a lot of the work had already been done. Vaccines too were extremely effective, but merely delivered the coup de grace for many diseases.

I wonder what conspiracy they are referencing