@article{article, title  = {{Hospital admission and emergency care attendance risk for SARS-CoV-2 delta (B.1.617.2) compared with alpha (B.1.1.7) variants of concern: a cohort study}},

 publisher = {{Elsevier BV}},

 url = {{https://doi.org/10.1016/s1473-3099(21)00475-8 }},

 year = {{2021}},

 month = {{8}},

 author = {{Twohig KA and Nyberg T and Zaidi A and Thelwall S and Sinnathamby MA and Aliabadi S and Seaman SR and Harris RJ and Hope R and Lopez-Bernal J and Gallagher E et al}},

 doi = {{10.1016/s1473-3099(21)00475-8}},

 volume = {{22}},

 journal = {{The Lancet Infectious Diseases}},

 issue = {{1}},

 pages = {{35-42}},

 note = {{Accessed on 2025/09/16}}}