Anosmia: A Clinical Indicator of COVID-19 Reinfection.

COVID-19, an ongoing world pandemic, is caused by SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2). Many organizations have recognized that COVID-19 patients may have sudden loss of smell or taste and have included these symptoms in their diagnostic guidelines. However, the occurrence of anosmia and dysgeusia in COVID-19 reinfection is yet to be ascertained.