(CNN) Every breath Robby Walker takes is one that almost didn't happen. Like most Americans hospitalized with Covid-19, Walker was not vaccinated. But "all the beds are taken up by Covid victims also getting ECMO treatment," Susan Walker said at that time. No one knows exactly when or where Robby Walker got infected. And since Robby was hospitalized, two lifelong friends from their hometown of Clermont, Florida, died from Covid-19, Torri said.

Source: CNN September 19, 2021 08:03 UTC