Introduction and expansion of the SARS-CoV-2 B.1.1.7 variant and reinfections in Qatar: A nationally representative cohort study.
Laith Jamal Abu-RaddadHiam ChemaitellyHoussein H AyoubPeter CoyleJoel A MalekAyeda A AhmedYasmin A MohamoudShameem YounuskunjuPatrick TangZaina Al KanaaniEinas Al KuwariAdeel Ajwad ButtAndrew M JeremijenkoAnvar Hassan KaleeckalAli Nizar LatifRiyazuddin Mohammad ShaikHanan F Abdul RahimGheyath K NasrallahHadi Mohamad YassineMohamed Ghaith Al-KuwariHamad Eid Al RomaihiMohamed H Al-ThaniAbdullatif Al-KhalRoberto BertolliniPublished in: PLoS medicine (2021)
In this study, we observed that introduction of B.1.1.7 into a naïve population can create a major epidemic wave, but natural immunity in those previously infected was strongly associated with limited incidence of reinfection by B.1.1.7 or other variants.