Kennedy says Health and Human Services will determine the cause of autism by September

WASHINGTON (AP) — The nation's top health agency will undertake a “massive testing and research effort” to determine the cause of autism, Health and Human Services Secretary Robert F. Kennedy Jr. announced.

Kennedy, a longtime vaccine critic who has pushed a discredited theory that routine childhood shots cause the developmental disability, said Thursday that the effort will be completed by September and involve hundreds of scientists. He shared the plans with President Donald Trump during a televised Cabinet meeting.

Trump suggested that vaccines could be to blame for autism rates, although decades of research have concluded there is no link between the two.

“There's got to be something artificial out there that's doing this,” Trump told Kennedy. “If you can come up with that answer, where you stop taking something, eating something, or maybe it's a shot. But something's causing it."

Autism is a developmental disability caused by differences in the brain. It presents with a wide range of symptoms that can include delays in language, learning, and social or emotional skills.

There’s scientific consensus that childhood vaccines don’t cause autism. Leading autism advocacy groups, including Autism Speaks, agree.

Research, including studies of twins, shows genes play a large role. No single environmental factor has been deemed a culprit. The National Institutes of Health, which already spends more than $300 million yearly researching autism, lists some possible risk factors such as prenatal exposure to pesticides or air pollution, extreme prematurity or low birth weight, certain maternal health problems or parents conceiving at an older age.

Kennedy has offered no details on how his study will be different or what researchers will be involved. Leading autism organizations, such as the Autism Society of America, have not been included in discussions about the research, said ASA spokeswoman Kristyn Roth.

Roth said many agree that more research is needed to determine what causes autism, but Kennedy’s approach has raised alarms.

"There is a deep concern that we are going backward and evaluating debunked theories,” Roth said.

Trump and Kennedy have both expressed concerns about rising autism diagnoses rates.

Some of that increase is due to increased awareness and a change in how the disability is diagnosed. For decades, the diagnosis was given only to kids with severe problems communicating or socializing and those with unusual, repetitive behaviors. But around 30 years ago, the term became shorthand for a group of milder, related conditions known as ″autism spectrum disorders.” Milder autism cases are far more common than severe ones.

With improved screening and autism services, diagnosis is increasingly happening at younger ages, too. And there’s been more awareness and advocacy for Black and Hispanic families, leading to an increase in autism diagnosed among those groups.

Still, anti-vaccine advocates, including Kennedy, have claimed that vaccines are to blame. The theory largely stems from a 1998 paper that was later retracted.

Scientists have since ruled out a link between vaccines and autism, finding no evidence of increased rates of autism among those who are vaccinated compared to those who are not.

Kennedy has hired David Geier, a man who has repeatedly claimed a link between vaccines and autism, to lead the autism research effort. The hiring of Geier, who the state of Maryland found was practicing medicine on a child without a doctor's license, was first reported by The Washington Post.

HHS did not immediately response to a request for comment.

Associated Press writers Lauran Neergaard in Washington, D.C., and Carla K. Johnson in Seattle contributed.

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

U.S. Health Secretary Robert F. Kennedy Jr. tours the Native Health Mesa Food Distribution Center in Mesa, Ariz., Tuesday, April 8, 2025. (AP Photo/Ross D. Franklin)

U.S. Health Secretary Robert F. Kennedy Jr. tours the Native Health Mesa Food Distribution Center in Mesa, Ariz., Tuesday, April 8, 2025. (AP Photo/Ross D. Franklin)

U.S. Health Secretary Robert F. Kennedy Jr., right, is accompanied by Susan Levy, Native Health Communications and Community Relations director, during a tour of the Native Health Mesa Food Distribution Center, in Mesa, Ariz., Tuesday, April 8, 2025. (AP Photo/Ross D. Franklin)

Health and Human Services Secretary Robert F. Kennedy Jr., from left, speaks as Interior Secretary Doug Burgum, Secretary of State Marco Rubio, President Donald Trump, Defense Secretary Pete Hegseth, Commerce Secretary Howard Lutnick Secretary of Education Linda McMahon, Director of the Office of Management and Budget Russell Vought and White House National Security Adviser Mike Waltz listen during a cabinet meeting in the Cabinet Room of the White House, Thursday, April 10, 2025, in Washington. (Pool via AP)

President Donald Trump, from right, Secretary of State Marco Rubio, Interior Secretary Doug Burgum and Health and Human Services Secretary Robert F. Kennedy, Jr., attend a cabinet meeting at the White House in Washington, D.C., U.S., April 10, 2025. REUTERS/Nathan Howard

VILNIUS, Lithuania (AP) — Residents of Vilnius were told to take shelter and Lithuania's president and prime minister were taken to safe locations Wednesday because of an alarm over drone activity near the border with Belarus, underlining jitters on NATO's eastern fringe over incursions related to Russia's war with Ukraine.

An emergency announcement from the military told people in the Vilnius region to “immediately head to a shelter or a safe place.”

The alert, which lasted for about an hour, also led to the closure of the airspace over Vilnius Airport. President Gitanas Nauseda and Prime Minister Inga Ruginiene were taken to shelters, and there was also an evacuation order at Lithuania's parliament, the Seimas, the BNS news agency reported.

It was the first major alert that sent residents and political leaders in a European Union and NATO capital rushing to shelters since Russia’s full-scale invasion of Ukraine in February 2022.

Lithuania borders Russia-allied Belarus to the east and Russia's Kaliningrad exclave to the west. Wednesday's alert came after the military said it detected drone activity in Belarus, but no drones were sighted over Lithuania.

In recent months, Ukrainian drones aimed at Russia have crossed or come down in NATO territory on numerous occasions. Western officials have blamed what they say is likely Russian electronic jamming of the drones. Russia, meanwhile, has renewed threats that it would retaliate if Ukrainian drones are launched from Baltic countries or if those countries are complicit in their use against Russia.

On Tuesday evening, Lithuanian Foreign Minister Kęstutis Budrys wrote on social media that “Russia is deliberately redirecting Ukrainian drones into Baltic airspace while waging smear campaigns” against Lithuania, Latvia and Estonia. “It’s a transparent act of desperation — an attempt to sow chaos and distract from a simple reality: (Ukraine) is hitting Russian military machine hard.”

Budrys' comment came hours after a NATO jet shot down a Ukrainian drone over southern Estonia. Ukraine apologized for that “unintended incident,” without specifying what had happened.

Last week, Latvia’s government collapsed following an argument over the handling of multiple incidents involving stray drones suspected to be from Ukraine. The defense minister was forced to quit after his party withdrew its support for him, and the prime minister then resigned. The governing coalition had been under strain for months over several other issues.

In a recent escalation of aerial attacks, Russia and Ukraine have sometimes fired hundreds of drones a day at each other.

Ukraine’s air force said Wednesday that it shot down 131 out of 154 drones that Russia launched overnight. The ones that got past air defenses killed three civilians and wounded 18 others, including two children, officials said.

Ukraine, meanwhile, continued its aerial campaign against Russia’s vital oil industry, with the General Staff reporting its drones struck a major Russian oil refinery and a pipeline pumping station overnight.

Russian media reports also indicated that a chemical plant in the southern Stavropol region was hit and caught fire, although local officials didn’t confirm any direct hit.

The U.K. government, a strong supporter of Ukraine's war effort, has loosened strict sanctions on Russian oil refined into diesel and jet fuel in third countries as prices rise due to the Iran war.

The waiver begins Wednesday and reflects growing supply concerns over certain fuels due to the effective blockade of the key Strait of Hormuz waterway.

That step comes two days after U.S. Treasury Secretary Scott Bessent announced that Washington was granting a 30-day extension for countries to import Russian oil that is already in tankers at sea, a move that is meant to reduce the oil supply shortages.

The announcement marked a continued policy reversal by the Trump administration, which had previously said the sanctions on Russian oil would resume. Originally announced in early March, the temporary waiver on the sanctions was first renewed in April.

Geir Moulson in Berlin, Hanna Arhirova in Kyiv, Ukraine and Barry Hatton in Lisbon, Portugal contributed to this report.

Follow the AP’s coverage of the war in Ukraine at https://apnews.com/hub/russia-ukraine

The phone shows the received message "The Lithuanian military reports: "AIR DANGER. Hurry to cover or a safe place without delay, take care of your loved ones, wait for further recommendations. We will inform you about the end of the danger in a separate message", in Vilnius, Lithuania, Wednesday, May 20, 2026. (AP Photo/Mindaugas Kulbis)

The phone shows the received message "The Lithuanian military reports: "AIR DANGER. Hurry to cover or a safe place without delay, take care of your loved ones, wait for further recommendations. We will inform you about the end of the danger in a separate message", in Vilnius, Lithuania, Wednesday, May 20, 2026. (AP Photo/Mindaugas Kulbis)