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. The WHO and CDC said continued drops in vaccination, weak disease surveillance and delayed response plans due to COVID-19, in addition to ongoing outbreaks in more than 20 countries, mean that “measles is an imminent threat in every region of the world.”
Scientists estimate at least 95% of a population needs to be immunized to protect against epidemics; the WHO and the CDC reported that only about 81% of children receive their first dose of measles vaccine while 71% get their second dose, marking the lowest global coverage rates of the first measles dose since 2008.
“The record number of children under-immunized and susceptible to measles shows the profound damage immunization systems have sustained during the COVID-19 pandemic,” CDC director Dr. Rochelle Walensky said in a statement.
Measles is mostly spread through direct contact or in the air and causes symptoms including fever, muscle pain and a skin rash on the face and upper neck. Most measles-related deaths are caused by complications including swelling of the brain and dehydration.
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.