Fig. 1

Relationship between cycle threshold (Ct) values and severity of disease. Ct values, with a maximum of 45 cycles, were derived from PCR analyses for SARS-CoV-2 RNA in nasopharyngeal (blue triangles) and stool (red circles) samples acquired from 112 hospitalized patients with COVID-19 from March 2021 through May 2021. Severity of disease was categorized as Moderate (N = 55, non-High Flow Nasal Oxygen (HFNO)-dependent), Severe (N = 33, HFNO-dependent), and Critical (N = 24, Intensive Care-dependent) (13) Lines represent median