A Nevada man got COVID-19 twice; his case shows why we need a vaccine
If you were counting on a coronavirus infection to keep you safe from COVID-19 without having to get a vaccine, scientists have some bad news: It won't work.
The evidence for this comes from a Nevada man who was infected with two distinct versions of the novel coronavirus and became sick with COVID-19 both times. In fact, he was sicker the second time around and had to be admitted to a hospital so that doctors could give him extra oxygen to help him breathe.
The unidentified patient is the first confirmed case in North America of a person being reinfected with the virus known as SARS-CoV-2, according to a
