Hundreds of flights canceled due to Covid illness immediately after airlines cancelled mask policy | Boing Boing:

For instance, Swiss-based EasyJet lifted mask requirements on March 27 and, lo and behold, cancelled 202 of its 3,517 flights between March 28–April 3 due to Covid illness, according to CBS. During the same time in 2019, the number of cancellations was zero. As in 0.