* age \<18 years old * suspected or confirmed current covid-19, defined as: (1) temperature \> 38 celsius; (2) cough; (3) shortness of breath; (4) sore throat; or, if available (not required), (5) positive confirmatory testing for covid-19 * suspected or confirmed convalescent covid-19, defined as any of the above symptoms within the prior 4 weeks. * inability to take medications orally * inability to provide written consent * known sensitivity/allergy to hydroxychloroquine * current use of hydroxychloroquine for another indication * pregnancy * prior diagnosis of retinopathy * prior diagnosis of glucose-6-phosphate dehydrogenase (g6pd) deficiency * major comorbidities increasing risk of study drug including: i. hematologic malignancy, ii. advanced (stage 4-5) chronic kidney disease or dialysis therapy, iii. known history of ventricular arrhythmias, iv. current use of drugs that prolong the qt interval

* age \<18 years old * suspected or confirmed current covid-19, defined as: (1) temperature \> 38 celsius; (2) cough; (3) shortness of breath; (4) sore throat; or, if available (not required), (5) positive confirmatory testing for covid-19 * suspected or confirmed convalescent covid-19, defined as any of the above symptoms within the prior 4 weeks. * inability to take medications orally * inability to provide written consent * known sensitivity/allergy to hydroxychloroquine * current use of hydroxychloroquine for another indication * pregnancy * prior diagnosis of retinopathy * prior diagnosis of glucose-6-phosphate dehydrogenase (g6pd) deficiency * major comorbidities increasing risk of study drug including: i. hematologic malignancy, ii. advanced (stage 4-5) chronic kidney disease or dialysis therapy, iii. known history of ventricular arrhythmias, iv. current use of drugs that prolong the qt interval

- age <18 years old - suspected or confirmed current covid-19, defined as: (1) temperature > 38 celsius; (2) cough; (3) shortness of breath; (4) sore throat; or, if available (not required), (5) positive confirmatory testing for covid-19 - suspected or confirmed convalescent covid-19, defined as any of the above symptoms within the prior 4 weeks. - inability to take medications orally - inability to provide written consent - known sensitivity/allergy to hydroxychloroquine - current use of hydroxychloroquine for another indication - pregnancy - prior diagnosis of retinopathy - prior diagnosis of glucose-6-phosphate dehydrogenase (g6pd) deficiency - major comorbidities increasing risk of study drug including: i. hematologic malignancy, ii. advanced (stage 4-5) chronic kidney disease or dialysis therapy, iii. known history of ventricular arrhythmias, iv. current use of drugs that prolong the qt interval

- age <18 years old - suspected or confirmed current covid-19, defined as: (1) temperature > 38 celsius; (2) cough; (3) shortness of breath; (4) sore throat; or, if available (not required), (5) positive confirmatory testing for covid-19 - suspected or confirmed convalescent covid-19, defined as any of the above symptoms within the prior 4 weeks. - inability to take medications orally - inability to provide written consent - known sensitivity/allergy to hydroxychloroquine - current use of hydroxychloroquine for another indication - pregnancy - prior diagnosis of retinopathy - prior diagnosis of glucose-6-phosphate dehydrogenase (g6pd) deficiency - major comorbidities increasing risk of study drug including: i. hematologic malignancy, ii. advanced (stage 4-5) chronic kidney disease or dialysis therapy, iii. known history of ventricular arrhythmias, iv. current use of drugs that prolong the qt interval