The prominent vaccine skeptic accused Gavi of neglecting "the key issue of vaccine safety."

In a video address, the health secretary said the United States would no longer donate to Gavi, the vaccine agency. The organization rejected his claims.

The announcement from Robert F Kennedy Jr comes as his controversial CDC vaccine panel meets for the first time.

Because it has 'ignored the science' and 'lost the public trust'

Some public health experts contend the thimerosal discussion will unnecessarily raise doubt in vaccines.

The prominent vaccine skeptic accused Gavi of neglecting "the key issue of vaccine safety."