
delta variant


Breakthrough cases of COVID-19 among vaccinated people leads to ‘super immunity’December 17, 2021
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COVID vaccines, previous infection likely offers ‘stronger than basic’ protection against Omicron variantDecember 13, 2021
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COVID-19 vaccination AND getting sick provides strongest protection against Delta, Omicron variantsDecember 8, 2021
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Delta variant appears capable of avoiding protection of Pfizer COVID vaccineDecember 3, 2021
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