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26-year-old man in Wuhan has gained 224 pounds in the space of five months while staying at home to avoid COVID-19, according to the doctors.
Mr Zhou had to be rushed to hospital by an ambulance earlier this month after falling critically ill because of the sudden increase in his weight.
Mr Zhou, a worker at an internet cafe, stopped leaving home when the city went into lockdown in late January.
His family members said he was struggling to move due to his weight.
Footage and images released by the Zhongnan Hospital of Wuhan University show medical workers examining Mr Zhou after he was admitted to the hospital on June 1.
