Fig. 1
From: Analysis of viral load in different specimen types and serum antibody levels of COVID-19 patients
Viral nucleic acid test results. a Nucleic acid test results of different specimens from different patients. The x-axis is the specimen, and the y-axis is the patients and days after symptoms onset. The y-axis shows the number of days of illness in descending order from top to bottom. Each cell is colored by viral load. b Viral load of different specimens from different patients. The mean copy number and standard deviation are shown in the figure