PMC9678325_01
PMC9678325_02
Daily number of laboratory-confirmed positive COVID-19 cases by date of symptom onset of health care personnel and non-health care personnel (N = 43968) in the US from February 12 to April 9, 2020.
pone.0272919.g004.jpg
PMC9678325_02_pone.0272919.g004.jpg
pone.0272919.g004
According to Fig 4, there was a strong association between the number of positive cases among non-HCP and the number of cases among HCP by date of symptom onset.