 "coronavirus")
The first study to investigate the case of a person in the U.S. who contracted Covid-19 twice found reinfection can occur swiftly and the second bout of illness can be more severe.
The research, published in the Lancet medical journal, examined the case of a 25-year-old man living in Nevada who became infected with two different genetic variants of the SARS-CoV-2 virus in less than two months. He tested negative twice in between, meaning he’s unlikely to have suffered a single prolonged infection.
The findings come as U.S. President Donald Trump says he’s immune to the virus after a single encounter. Any
