- Durability of BNT162b2 vaccine against hospital and emergency department admissions due to the omicron and delta variants in a large health system in the USA: a test-negative case–control study The Lancet
- Antibodies against the original strain of SARS-CoV-2 may not work as well with omicron News-Medical.Net
- Omicron less severe than Delta but more easily evades boosters CIDRAP
- Studies reveal reduced hospitalisations due to Omicron as compared to Delta variant The Financial Express
- Vaccine effectiveness against symptomatic disease caused by the Omicron and Delta variants in England News-Medical.Net
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