As Paralel.az reports, foreign media reported an increased risk of COVID-19 infection within 90 days of taking the second dose of Pfizer-BioNTech: “Pfizer-BioNTech provides excellent protection against the virus in the first weeks after vaccination. However, over time, the immune protection of some vaccinated people decreases.
Large-scale vaccination campaigns are helping prevent COVID-19 around the world. However, the researchers found that the risk of infection increased depending on how long it took for the second dose of the vaccine.

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