Since the middle of May, 1,200 child deaths from measles and malnutrition have been reported from war-torn Sudan.
Increases in countries that already had good momentum overshadowed struggles other countries had with regaining lost ground.
The WHO reports 316 new mpox cases and 2 new deaths, and the UK warns about a rise in measles transmission.
Seventy-two percent of respondents say the benefits of MMR vaccines are very high or high, and 64% say the risk of side effects is very low or low.
The country has already confirmed 49 measles cases, compared with 54 for all of 2022.
The COVID-19 emergency committee will meet on May 4 to assess if the situation still warrants a public health emergency of international concern.
A measles outbreak that began late last year in western Nepal has grown to 690 cases, the WHO says.
The case involves an unvaccinated person who attended a religious gathering in Kentucky of about 20,000 people.
Nigeria is seeing a Lassa fever spike, Paraguay reports its first local measles case since 1998, and 5 nations have new polio cases.
Coverage with state-required vaccines fell to 93% among kindergartners during the 2021-21 school year, down 2 percentage points from 2019-20.
