What rising Covid-19 infections in the UK and Europe could mean for the US

Two weeks after the United Kingdom dropped its last remaining Covid-19 mitigation measure — a requirement that people who test positive for the virus isolate for five days — the country is seeing cases and hospitalizations climb once again.Two weeks after the United Kingdom dropped its last remaining Covid-19 mitigation measure — a requirement that people who test positive for the virus isolate for five days — the country is seeing cases and hospitalizations climb once again.