A 33-year-old man living in Hong Kong had the novel coronavirus COVID-19. He had a cough, sore throat, fever, and headache for three days.<br />But according to CNN, a new study shows the same man had COVID-19 a second time, 142 days after the first bout with the illness.<br />The patient was returning to Hong Kong from traveling in Spain via the United Kingdom, and tested positive during his entry screening at the airport.<br />The man was hospitalized again, but remained asymptomatic.<br />Researchers from the University of Hong Kong say the case demonstrates that any immunity gained from surviving COVID-19 doesn't last very long.<br />The patient got re-infected 4.5 months after the first infection. Therefore, it shows that for this patient, the immunity induced by the first infection is short lasting. Dr. Kelvin Kai-Wang, Study Co-Author, University of Hong Kong
