Fig. 1.

Summary of days until confirmation of a positive real-time reverse transcriptase-polymerase chain reaction (RT-PCR) for COVID-19 for patients treated in the dialysis center after April 2, 2020. The color coding is as follows: light green, date that the patients visited our center for blood purification therapy; dark green, last day of a patient’s treatment in our dialysis center; yellow, date of symptom onset; and red, date of positive RT-PCR confirmation