Weekly measles cases have set a new record, according to figures published by the CDC, topping the peak of an outbreak in 2019 that ranked as the worst since the 1990s. The number of cases that had their symptoms start during the week of March 30 has grown to 111, according to the agency's latest update. Authorities backdate newly reported measles cases based on when their rash began, to account for delays in reporting and diagnosis.
