Viral load
Coronavirus disease 2019 (COVID-19)
Medicine
Infectivity
Viral pneumonia
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
Pneumonia
Internal medicine
Incubation period
Tertiary care
2019-20 coronavirus outbreak
Retrospective cohort study
Gastroenterology
Incubation
Virus
Virology
Biology
Disease
Outbreak
Infectious disease (medical specialty)
Biochemistry
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