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dec 7, 1955 - Jonas Salk (IPV)

Description:

IPV injects dead viruses in the patient. It is more expensive compared to the OPV. It requires a health official to administer the shot.

Added to timeline:

The History of Infectious Diseases

14 Dec 2018

1

0

995

Date:

dec 7, 1955

Now

~ 69 years ago

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