- A proportion of recovered patients, defined as asymptomatic with 2 negative RT-PCR tests, may still be asymptomatic carrier.
This study was done in Wuhan, China at Zhongnan Hospital of Wuhan University. The data comes from 4 patients, one hospitalized patient, and three medical personnel that tested positive for SARS-Cov-2 from January 1, 2020, to February 15, 2020. These patients had positive RT-PCR results and demonstrated disturbing findings in the chest CT. One patient was asymptomatic and others had mild to moderate symptoms. Patients were tested 5-13 days after being considered havind recovered from SARS-CoV-2 to determine if they were asymptomatic carrier. All tested positive despite contact with family members or symptomatic individual.
Lan, L., Xu, D., Ye, G., Xia, C., Wang, S., Li, Y., & Xu, H. (2020). Positive RT-PCR Test Results in Patients Recovered From COVID-19. Jama. https://doi.org/10.1001/jama.2020.2783