Byron Donalds Blames Measles Outbreak on Immigration
Rep. Byron Donalds (R-FL), the Republican nominee for Florida governor, said Sunday that illegal immigration is the primary cause of the ongoing measles outbreak, not declining childhood vaccination rates.
- Nearly all of Florida falls below the 95% immunization rate for measles herd immunity.
- Donalds cited outbreaks in El Paso, Texas, and southwest Florida as evidence.
- He attributed the spread to undocumented immigrants lacking vaccination records.
- CBS host Margaret Brennan asked Donalds directly what evidence supported the claim.
Why it matters: The exchange highlights a gap between Donalds' explanation and the public health consensus on measles resurgence.
- Radiologist Dr. Pradheep Shankar wrote on X that data does not support immigration as the cause of outbreaks.
- Democratic strategist Leslie Marshall said medical professionals attribute the outbreaks to declining childhood vaccination rates.
How 3 sources split on this story
Where they split: Left-leaning coverage focuses on Donalds' claims being disputed by medical experts; right-leaning coverage presents his immigration argument without challenge.
Left coverage, 2 sources: The left frames Donalds' comments as factually false and politically motivated, amplifying expert rebuttals and social media criticism.
Right coverage, 1 sources: The right presents Donalds' argument as a legitimate policy critique of Biden-era border enforcement and its downstream public health consequences.
What’s next: Donalds said his priority as governor would be reducing health care costs, not expanding vaccination mandates.
- What does available CDC or state data show about the specific sources of Florida's measles cases?
- Will Donalds formally address the herd immunity gap in Florida's vaccination rates before the election?


