Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant

Abstract

Only modest differences in vaccine effectiveness were noted with the delta variant as compared with the alpha variant after the receipt of two vaccine doses. Absolute differences in vaccine effectiveness were more marked after the receipt of the first dose. This finding would support efforts to maximize vaccine uptake with two doses among vulnerable populations. (Funded by Public Health England.).

Keywords

VaccinationMedicineCoronavirus disease 2019 (COVID-19)Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Confidence interval2019-20 coronavirus outbreakVirologyDiseaseInternal medicineOutbreakInfectious disease (medical specialty)

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Publication Info

Year: 2021
Type: article
Volume: 385
Issue: 7
Pages: 585-594
Citations: 3040
Access: Closed

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APA Style

                            
                                
                                    Jamie Lopez Bernal, 
                                
                                    Nick Andrews, 
                                
                                    Charlotte Gower
                                
                                et al.
                            
                            (2021). 
                            Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant. 
                            New England Journal of Medicine
                            , 385
                            (7)
                            , 585-594.
                            https://doi.org/10.1056/nejmoa2108891
                        

Identifiers

DOI: 10.1056/nejmoa2108891