Can I still test positive for COVID-19 after 10 days?

Can I still test positive for COVID-19 after 10 days?

Researchers at the University of Chicago Medicine released preprint data on Medrxiv indicating that despite feeling well enough to work, more than 40% of vaccinated healthcare workers still tested positive for COVID-19 five to 10 days after their symptoms began. Feb 3, 2022

See also  Is Optum product based company?