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21 mar 1950 año - Malaria
Descripción:
An eradication campaign was started in the 1950s, but it failed globally because of problems including the resistance of mosquitoes
Añadido al timeline:
14 dic 2018
1
0
384
The Fight is Never Ending
Public and Global Health
fecha:
21 mar 1950 año
Ahora mismo
~ 74 years ago