Eurosurv. Impact of booster vaccination on the control of COVID-19 Delta wave in the context of waning immunity: application to France in the winter 2

[tetano]

• Paolo Bosetti[SUP]1,*[/SUP] , Cécile Tran Kiem[SUP]1,2,*[/SUP] , Alessio Andronico[SUP]1[/SUP] , Juliette Paireau[SUP]1,3[/SUP] , Daniel Levy-Bruhl[SUP]3[/SUP] , Lise Alter[SUP]4[/SUP] , Arnaud Fontanet[SUP]5,6[/SUP] , Simon Cauchemez[SUP]1[/SUP]

Europe has experienced a large COVID-19 wave caused by the Delta variant in winter 2021/22. Using mathematical models applied to Metropolitan France, we find that boosters administered to ≥ 65, ≥ 50 or ≥ 18 year-olds may reduce the hospitalisation peak by 25%, 36% and 43% respectively, with a delay of 5 months between second and third dose. A 10% reduction in transmission rates might further reduce it by 41%, indicating that even small increases in protective behaviours may be critical to mitigate the wave.

full article

https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2022.27.1.2101125#html_fulltext

 

[sharon sanders]

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