WASHINGTON, DC - AUGUST 10: U.S. President Donald Trump, accompanied by Health and Human Services Secretary Robert F. Kennedy Jr. (R) and Jayme Leagh Franklin with the The Conservateur (L), speaks after signing an executive order calling for childhood vaccine shots to be spaced out into separate visits during an event in the Oval Office of the White House on August 10, 2026 in Washington, DC. During his second term, Trump has urged Health and Human Services Secretary Robert F. Kennedy Jr. to investigate further research on vaccines. (Photo by Anna Moneymaker/Getty Images)

WASHINGTON, DC - AUGUST 10: U.S. President Donald Trump holds up a sign that reads "Gold Standard Childhood Vaccine Recommendations" before signing an executive order calling for childhood vaccine shots to be spaced out into separate visits during an event in the Oval Office of the White House on August 10, 2026 in Washington, DC. During his second term, Trump has urged Health and Human Services Secretary Robert F. Kennedy Jr. to investigate further research on vaccines. (Photo by Anna Moneymaker/Getty Images)

WASHINGTON, DC - AUGUST 10: U.S. President Donald Trump holds up a print out of one of his social media posts from Truth Social before signing an executive order calling for childhood vaccine shots to be spaced out into separate visits during an event in the Oval Office of the White House on August 10, 2026 in Washington, DC. During his second term, Trump has urged Health and Human Services Secretary Robert F. Kennedy Jr. to investigate further research on vaccines. (Photo by Anna Moneymaker/Getty Images)

WASHINGTON, DC - AUGUST 10: U.S. President Donald Trump, accompanied by (L-R) National Institutes of Health Director Jay Bhattacharya, Jayme Leagh Franklin with the The Conservateur, and Health and Human Services Secretary Robert F. Kennedy Jr., holds up a sign that reads "Gold Standard Childhood Vaccine Recommendations" before signing an executive order calling for childhood vaccine shots to be spaced out into separate visits during an event in the Oval Office of the White House on August 10, 2026 in Washington, DC. During his second term, Trump has urged Health and Human Services Secretary Robert F. Kennedy Jr. to investigate further research on vaccines. (Photo by Anna Moneymaker/Getty Images)

US President Donald Trump speaks after signing an executive order calling for more research and flexibility on vaccines, alongside (L/R) Director of the National Institutes of Health (NIH) Jay Bhattacharya, Jayme Leagh Franklin, founder of The Conservateur, Secretary of Health and Human Services Robert F. Kennedy Jr. and Heidi Overton, Deputy Assistant to the President for Domestic Policy, in the Oval Office of the White House in Washington, DC, on August 10, 2026. Trump signed an executive order Monday pushing for a rethink of school vaccine mandates and repeating calls for the measles-mumps-rubella vaccine to be separated into three individual shots. Curbing vaccines has been a key priority for Health Secretary Robert F. Kennedy Jr, who founded an anti-vaccine nonprofit and has long promoted a disproven link between immunization and autism. (Photo by Jim WATSON / AFP via Getty Images)

WASHINGTON, DC - AUGUST 10: U.S. President Donald Trump (R), accompanied by National Institutes of Health Director Jay Bhattacharya (L), and Jayme Leagh Franklin with the The Conservateur (2nd-L), speaks after signing an executive order calling for childhood vaccine shots to be spaced out into separate visits during an event in the Oval Office of the White House on August 10, 2026 in Washington, DC. During his second term, Trump has urged Health and Human Services Secretary Robert F. Kennedy Jr. to investigate further research on vaccines. (Photo by Anna Moneymaker/Getty Images)

US President Donald Trump speaks after signing an executive order calling for more research and flexibility on vaccines, alongside (L/R) Director of the National Institutes of Health (NIH) Jay Bhattacharya, Jayme Leagh Franklin, founder of The Conservateur, Secretary of Health and Human Services Robert F. Kennedy Jr. and Heidi Overton, Deputy Assistant to the President for Domestic Policy, in the Oval Office of the White House in Washington, DC, on August 10, 2026. Trump signed an executive order Monday pushing for a rethink of school vaccine mandates and repeating calls for the measles-mumps-rubella vaccine to be separated into three individual shots. Curbing vaccines has been a key priority for Health Secretary Robert F. Kennedy Jr, who founded an anti-vaccine nonprofit and has long promoted a disproven link between immunization and autism. (Photo by Jim WATSON / AFP via Getty Images)

WASHINGTON, DC - AUGUST 10: Health and Human Services Secretary Robert F. Kennedy Jr. (L), and Deputy Assistant to the President for Domestic Policy Dr. Heidi Overton (R), stand in the Oval Office after U.S. President Donald Trump signed an executive order calling for childhood vaccine shots to be spaced out into separate visits at the White House on August 10, 2026 in Washington, DC. (Photo by Anna Moneymaker/Getty Images)