TNPSC Thervupettagam

World Immunization Week

April 28 , 2020 1547 days 928 0
  • Every year, last week of April is marked as the World Immunization Week.
  • Theme of this year is Vaccines work for All.
  • The first vaccine developed to immunize against diseases was the small pox vaccine. 
  • It was developed by an English Physician Edward Jenner in 1796.

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