BibTex format
@unpublished{Elliott:2021,
author = {Elliott, P and Haw, D and Wang, H and Eales, O and Walters, C and Ainslie, K and Atchison, C and Fronterre, C and Diggle, P and Page, A and Trotter, A and Prosolek, S and COG-UK, TCGUKC and Ashby, D and Donnelly, C and Barclay, W and Cooke, G and Ward, H and Darzi, A and Riley, S},
title = {REACT-1 round 13 final report: exponential growth, high prevalence of SARS-CoV-2 and vaccine effectiveness associated with Delta variant in England during May to July 2021},
url = {http://hdl.handle.net/10044/1/90800},
year = {2021}
}