Thomas A, Danon L, Christensen H, Northstone K, Smith D, Nixon E, Trickey A, Hemani G, Sauchelli S, Finn A, Timpson N, Brooks-Pollock E. Limits of lockdown: characterising essential contacts during physical distancing. Wellcome Open Res. 2021 May;6:116. doi: 10.12688/wellcomeopenres.16785.1
Lennon RP, Griffin C, Miller EL, Dong H, Rabago D, Zgierska AE. Norovirus infections drop 49% in the United States with strict COVID-19 public health interventions. Acta Med Acad. 2020 Dec;49(3):278-80. doi: 0.5644/ama2006-124.317