Pfizer and AstraZeneca vaccines neutralized Delta variant in 95% of study participants

The researchers assured that to achieve an immunization capable of fighting it, it is necessary to administer both doses.

• 2021-07-09T18:02:09+00:00
• Duration: 01:22

• Pfizer and AstraZeneca
• video
• Delta
• variantedelta
• inmunizacion
• Dosis

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