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Todo sobre la candidata a vacuna COVID-19 de Pfizer y su posible eficacia en un 90%
La vacuna candidata de Pfizer y BioNTech es parte del grupo de vacunas genéticas, que usan uno o más genes del coronavirus, en este caso el SARS-CoV-2, para provocar una respuesta inmune.
- 9 de noviembre de 2020 10:44 p.m.
- Duración: 03:37
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