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Polio Vaccine: Anniversary, 1955
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April 12th, 2021 Anniversary of announcement that the polio vaccine developed by American physician Dr. Jonas E. Salk was "safe", potent and effective". Incidence of infantile paralysis or poliomyelitis declined by 95% following introduction of preventive vaccines. The first mass inoculations of children with the Salk vaccine began in Pittsburgh in 1954. Source: www.historyofvaccines.org/content/articles/history-polio-poliomyelitis 
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Additional April Events
Money Smart Week® April 10th - April 17th 
Kindergarten Day April 21st, 2021 
Paraprofessional Appreciation Day April 4th, 2021 |
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