> Measles mortality fell markedly (>90%) from the 19th century to mid-20th century prior to introduction of measles vaccine or the widespread use of antibiotics

> Measles mortality fell markedly (>90%) from the 19th century to mid-20th century prior to introduction of measles vaccine or the widespread use of antibiotics for secondary bacterial infections [1][2] This story is similar for most infections we now vaccinate for, death rates were dropping dramatically years before vaccines were introduced. [1] https://www.cambridge.org/core/journals/epidemiology-and-infection/article/agespecific-measles-mortality-during-the-late-19thearly-20th-centuries/F4D013C76395921C5338067A0BD0278C https://www.cambridge.org/core/journals/epidemiology-and-inf... [2] https://scholar.google.com/scholar_lookup?title=Measles+mortality+in+the+United+States+1971%E2%80%931975&author=Engelhardt+S&publication+year=1980&journal=American+Journal+of+Public+Health&volume=70&pages=1166-1169 https://scholar.google.com/scholar_lookup?title=Measles+mort...