Alliance for Pandemic Preparedness

January 27, 2021

Non-Congruent SARS-CoV-2 Waves in England



Keywords (Tags):

A study of SARS-CoV-2 infection waves in England noted different regional distributions of infections during the first (March-September 2020) and second (September 2020-onward) waves, with regions that experienced high mortality in the first wave experiencing lower mortality in the second. Greater first wave severity was also associated with slower second wave growth rate. Possible explanations for these trends put forth by the authors were changes in the demographics of the subpopulations sampled by testing, increased social distancing behaviors, or changes in population immunity. 

Brookes et al. (Jan 26, 2021). Non-Congruent SARS-CoV-2 Waves in England. Pre-print downloaded January 27 from