Fig. 5From: Discrimination and isolation of the virus from free RNA fragments for the highly sensitive measurement of SARS-CoV-2 abundance on surfaces using a graphene oxide nano surfaceRT-qPCR results of SARS-CoV-2 and qPCR results of total bacteria in environmental samples collected from surfaces in various negative pressure COVID-19 patient wards; a, e single-person negative pressure wards in which patients can move; b, f double-shared (two-person) negative pressure wards (patients can move); c, g single-person negative pressure wards within an intensive care unit (patients with nasal cannula unit cannot move); d, h single-person negative pressure wards within an intensive care unit (patients with extubation unit cannot move)Back to article page