To test if the medication Hydroxychloroquine will decrease the amount of virus(as measured by
PCR) , 7 days after initiation of therapy compared to control patients receiving placebo.
The study design is a randomized (5 days of medication v. 5 days of placebo) clinical trial
initiated immediately after diagnosis in ambulatory health care workers at University of
South Alabama Health, or in ambulatory USA patients. At 7 days after enrollment another
nasopharyngeal swab will be taken to measure if the virus is still present. At 10 weeks we
will measure immunity from Covid-19 using a single blood sample. It is a phase 2/3 clinical
trial.