(A) Alpha variant (B.1.1.7), 20 February–15 June 2021. (B) Delta variant (B.1.617.2), 4 July–20 November 2021. (C) Omicron variant (B.1.1.529), 21 December 2021–31 January 2022. VE adjusted for age, sex, country of origin, comorbidity, staying at hospital, calendar time, and test incidence. CI, confidence interval; SARS-CoV-2, Severe Acute Respiratory Syndrome Coronavirus 2; VE, vaccine effectiveness.</p
Among 134 223 patients with coronavirus disease 2019 (COVID-19), we assessed how risk of hospitaliza...
Background: B.1.1.7 (alpha) and B.1.617.2 (delta) variants of concern for SARS-CoV-2 have been repor...
The Delta (B.1.617.2) variant was the predominant UK circulating SARS-CoV-2 strain between May and D...
Adjusted VE against SARS-CoV-2 reinfection during periods of Alpha, Delta, or Omicron dominance.</p
Infections with the Omicron SARS-CoV-2 variant are rapidly increasing worldwide. Among 174,349 SARSC...
Left: influence of baseline immune status on the time course of (re)infection events, shown separate...
We investigated the serial interval for SARS-CoV-2 Omicron BA.1 and Delta variants and observed a sh...
The Delta (B.1.617.2) variant was the predominant UK circulating SARS-CoV-2 strain between May and D...
We included 39,524 COVID-19 Omicron and 51,481 Delta cases reported in Norway from December 2021 to ...
We investigated the serial interval for SARS-CoV-2 Omicron BA.1 and Delta variants and observed a sh...
Vaccination and disease The United Kingdom has high rates of vaccination for ...
We investigated the serial interval for SARS-CoV-2 Omicron BA.1 and Delta variants and observed a sh...
The Delta (B.1.617.2) variant was the predominant UK circulating SARS-CoV-2 strain between May and D...
In December 2021-January 2022 the Veneto region in Italy faced an unprecedented wave of SARS-CoV-2 i...
In December 2021-January 2022 the Veneto region in Italy faced an unprecedented wave of SARS-CoV-2 i...
Among 134 223 patients with coronavirus disease 2019 (COVID-19), we assessed how risk of hospitaliza...
Background: B.1.1.7 (alpha) and B.1.617.2 (delta) variants of concern for SARS-CoV-2 have been repor...
The Delta (B.1.617.2) variant was the predominant UK circulating SARS-CoV-2 strain between May and D...
Adjusted VE against SARS-CoV-2 reinfection during periods of Alpha, Delta, or Omicron dominance.</p
Infections with the Omicron SARS-CoV-2 variant are rapidly increasing worldwide. Among 174,349 SARSC...
Left: influence of baseline immune status on the time course of (re)infection events, shown separate...
We investigated the serial interval for SARS-CoV-2 Omicron BA.1 and Delta variants and observed a sh...
The Delta (B.1.617.2) variant was the predominant UK circulating SARS-CoV-2 strain between May and D...
We included 39,524 COVID-19 Omicron and 51,481 Delta cases reported in Norway from December 2021 to ...
We investigated the serial interval for SARS-CoV-2 Omicron BA.1 and Delta variants and observed a sh...
Vaccination and disease The United Kingdom has high rates of vaccination for ...
We investigated the serial interval for SARS-CoV-2 Omicron BA.1 and Delta variants and observed a sh...
The Delta (B.1.617.2) variant was the predominant UK circulating SARS-CoV-2 strain between May and D...
In December 2021-January 2022 the Veneto region in Italy faced an unprecedented wave of SARS-CoV-2 i...
In December 2021-January 2022 the Veneto region in Italy faced an unprecedented wave of SARS-CoV-2 i...
Among 134 223 patients with coronavirus disease 2019 (COVID-19), we assessed how risk of hospitaliza...
Background: B.1.1.7 (alpha) and B.1.617.2 (delta) variants of concern for SARS-CoV-2 have been repor...
The Delta (B.1.617.2) variant was the predominant UK circulating SARS-CoV-2 strain between May and D...