4 votes The distribution of vaccines in the 19th century Posted September 24, 2020 by skybrian Tags: smallpox, cowpox, vaccines, 19th century, medicine, health.public, author.alex tabarrok, source.marginalrevolution https://marginalrevolution.com/marginalrevolution/2020/09/the-distribution-of-vaccines-in-the-19th-century.html Link information This data is scraped automatically and may be incorrect. Published Sep 22 2020 Word count 799 words