About 20 million passengers are expected to fly this holiday as cases begin surging again.

As cases begin surging once more in the US, millions of people are expected to travel for the Thanksgiving holiday, and health workers and hospital systems are now preparing for an influx of Covid patients after having little time to recover from the summer surge.

Last year, there was a major surge in cases around the holidays. But this year, new tools could blunt the spread – if they are taken up quickly. Read more at the Guardian.