Global efforts to protect children against diseases including measles, polio and tuberculosis have stalled since 2010, leaving millions vulnerable to deadly infections.

The head of leading vaccines group Gavi alliance says it has not received confirmation from the U.S. government that it might be losing more than $1 billion in pledged funding as part of a reported proposal by U.S. authorities to cut support for international aid groups.

Britain’s government says it will require COVID-19 vaccinations for nursing home workers in England, arguing that the need to protect vulnerable residents outweighed employees' right to choose whether to get the jab.