| Delta haut gut rein |  |
>The period from February to June 2021 was one during which initial wild-type SARS-CoV-2 strains were supplanted in Ontario, Canada, first by variants of concern (VOC) with the N501Y mutation (principally alpha, beta and gamma variants), and then by the delta variant. We demonstrate that these emerging VOCs were associated with an increase in virulence, as measured by risk of hospitalization, intensive care unit admission, and death. Compared to non-VOC SARS-CoV-2 strains, and adjusting for comorbidity, age and sex of cases, and temporal trends, the elevation in risk associated with N501Y-positive variants was 74% (62-86%) for hospitalization; 138% (105-176%) for ICU admission; and 83% (57-114%) for death. Increases with delta variant were even larger: 105% (80-133%) for hospitalization; 241% (163-344%) for ICU admission; and 121% (57-211%) for death. The progressive increase in transmissibility and virulence of SARS-CoV-2 variants will result in a significantly larger, and more deadly, pandemic.
[https://www.medrxiv.org/content/10.1101/2021.07.05.21260050v1]
Impfen gehen, der einzige Ausweg.