The patient, who was taking part in a study with eight other patients, died in a hospital back in 2021, but only now has the case been presented at the European Congress of Clinical Microbiology and Infectious Diseases in Lisbon, Portugal. It is not known whether the unnamed patient also died of COVID-19, since according to the doctors he had other diseases in addition to an immune deficiency, but the observations brought important insights into mutations of the virus.

British patient had COVID-19 continuously for 505 days — a-bigger-bang