The first vaccines: Smallpox, diphtheria, tetanus, and pertussis

"Dorothea Sharp, (1874-1955): El baño"

“Dorothea Sharp, (1874-1955): El baño”

Edward Jenner invented a method to protect against smallpox in 1796. The method involved taking material from a blister of someone infected with cowpox and inoculating it into another person’s skin; this was called arm-to-arm inoculation. However by the late 1940s, scientific knowledge had developed enough, so that large-scale vaccine production was possible and disease control efforts could begin in earnest.
The next routinely recommended vaccines were developed early in the 20th century. These included vaccines that protect against pertussis (1914), diphtheria (1926), and tetanus (1938). These three vaccines were combined in 1948 and given as the DTP vaccine.

History of Vaccine Schedule

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