It is a vaccine to prevent Whooping Cough (also known as Pertussis).
The universal infant immunization for pertussis was introduced in 1940s, which has resulted in a dramatic decline of cases.
Edward Jenner did not invent the vaccine for petussis (whooping cough) because he invented the smallpox vaccine in 1796, the pertussis vaccine was invented in 1927 so therefore edward Jenner would be...
The Pertussis vaccine was developed in 1921 but was not widely used till the 1930s.
absolutely