Eurosurv. Increased risk of infection with SARS-CoV-2 Omicron BA.1 compared with Delta in vaccinated and previously infected individuals, the Netherla

[tetano]

• Dirk Eggink[SUP]1,*[/SUP] , Stijn P Andeweg[SUP]1,*[/SUP] , Harry Vennema[SUP]1[/SUP] , Noortje van Maarseveen[SUP]2,3[/SUP] , Klaas Vermaas[SUP]2[/SUP] , Boris Vlaemynck[SUP]4[/SUP] , Raf Schepers[SUP]4[/SUP] , Arianne B van Gageldonk-Lafeber[SUP]1[/SUP] , Susan van den Hof[SUP]1[/SUP] , Chantal BEM Reusken[SUP]1,**[/SUP] , Mirjam J Knol[SUP]1,**[/SUP]

Infections with the Omicron SARS-CoV-2 variant are rapidly increasing worldwide. Among 174,349 SARS-CoV-2-infected individuals (≥ 12 years), we observed an increased risk of S gene target failure, predictive of the Omicron variant, in vaccinated (odds ratio (OR): 3.6; 95% confidence interval (CI): 3.4–3.7) and previously infected individuals (OR: 4.2; 95% CI: 3.8–4.7) compared with infected naïve individuals. This suggests vaccine- or infection-induced immunity against SARS-CoV-2 infections is less effective against the Omicron than the Delta variant.

full article


https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2022.27.4.2101196#html_fulltext

 

[sharon sanders]

bump this