Lawmakers and health experts are sounding the alarm after Health and Human Services Secretary Robert F. Kennedy Jr. argued in an opinion piece that vitamin A and nutrition, instead of vaccines, will help stop the spread of measles.

But in his new opinion piece about the ongoing measles outbreak, published March 2 in Fox News Digital, Kennedy wrote that vaccines “not only protect individual children from measles, but also contribute to community immunity,

The measles outbreak in Texas has sparked debate over the use of vitamin A, with some health experts warning it may not be effective.