Why are US coronavirus deaths going down as covid-19 cases soar?

A smaller proportion of people seem to be dying from covid-19 in the US and in hospitals in England, but that doesn’t mean the coronavirus is becoming less deadly

Source:
https://www.newscientist.com/article/2248813-why-are-us-coronavirus-deaths-going-down-as-covid-19-cases-soar/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home