Global measles cases increased by 79% in the first two months of 2022 compared with the same period in 2021. According to UNICEF and the World Health Organization (WHO), the rise in cases, from 9,665 to 17,338, is due to disruptions in child immunization programs resulting from the COVID-19 pandemic. The actual numbers are likely higher because COVID-19 also created disruptions in the surveillance programs. During the pandemic, immunization campaigns were put on hold, leaving 23 million children unvaccinated. Additionally, resources for routine vaccinations were diverted to COVID-19 vaccination efforts. Public health officials fear these increases are the forerunner of larger measles outbreaks as well as outbreaks of other communicable diseases. Tedros Adhanom Ghebreyesus, director-general of the WHO, issued an urgent call for immunization campaigns to get back on track and for catch-up campaigns to be launched.