LONDON (AP) — The World Health Organization and the U.S. Centers for Disease Control and Prevention say measles immunization has dropped significantly since the coronavirus pandemic began, resulting in a record high of nearly 40 million children missing a vaccine dose last year. In a report issued Wednesday, the WHO and the CDC said millions of children were now susceptible to measles, among the world’s most contagious diseases. In 2021, officials said there were about 9 million measles infections and 128,000 deaths worldwide. More than 95% of measles deaths occur in developing countries, mostly in Africa and Asia. There is no specific treatment for measles, but the two-dose vaccine against it is about 97% effective in preventing severe illness and death.