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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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14 ene 1978 año - En 1978 se obtuvo una vacuna con virus inactivados con formaldehído
Añadido al timeline:
vacyna
By
Reyna Avelar
16 nov 2017
0
0
384
fecha:
14 ene 1978 año
Ahora mismo
~ 47 years ago
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