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Excelsio Media by Nelson Alarcón - alarcónnelson

Pfizer's COVID's vaccine over '90% effective'

Pfizer's COVID's vaccine over '90% effective'
Pfizer Inc on Monday said its experimental vaccine was more than 90% effective in preventing COVID-19 based on initial data from a large study, a major victory in the fight against a pandemic that has killed over 1 million people.

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