Abstract
Coronavirus disease 2019 (COVID-19) resulted in a worldwide concern. The role of the immunity system and memory cells in this disease and their ability in preventing a secondary infection is a controversial issue. Here we presented a case of reinfection with this virus eight months after the first episode. A twenty-one-year-old man was referred to our local hospital on 19 February 2020 with symptoms of viral infection. COVID-19 infection was confirmed by RT-PCR. He got hospitalized for 5 days. Eight months later on 4 October 2020, he was again referred with symptoms of viral infection and para-clinical tests confirmed COVID-19 infection. He got hospitalized for 6 days in the second episode. Although the immunity system plays important role in COVID-19 infection through the presence of memory cells it doesn’t guarantee permanent immunity to this virus. Reinfection with COVID-19 is possible and has been reported in some other studies.
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