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jan 1, 1974 - Expanded Programme on Immunization
Description:
WHA expands its immunization program to include measles, diphtheria, tetanus, tb, pertussis, and polio
Added to timeline:
From A to Zika: Diseases and Medical Advancements Through Time
By
Claire
14 Dec 2018
1
0
1221
Date:
jan 1, 1974
Now
~ 52 years ago
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