21
/
en
AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
2346419
197660
2

mar 21, 1979 - Polio

Description:

the last case of naturally occurring case was in 1979

Added to timeline:

6 months ago
1
0
74
The Fight is Never Ending
Public and Global Health

Date:

mar 21, 1979
Now
~ 40 years ago
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