RFK Jr. announced a halt to all U.S. funding for the global Gavi vaccine alliance. One expert calls it a "travesty and a nightmare."

U.S. Health Secretary Robert F. Kennedy Jr. said the organization has “ignored the science" and “lost the public trust.”

The UK has confirmed its support for global vaccination by pledging £1.25bn to global vaccine group Gavi while the US will halt funding to the international organisation. A provider of free jabs for meningitis,