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вакцинация где-то в 7 раз менее эффективна, чем ковид В 13 раз. Results SARS-CoV-2-naïve vaccinees had a 13.06-fold (95% CI, 8.08 to 21.11) increased risk for breakthrough infection with the Delta variant compared to those previously infected, when the first event (infection or vaccination) occurred during January and February of 2021. Добавить комментарий: |
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