Sep 23, 2026 · 14 min
Measles can erase immune memory before outbreaks spread
Vaccinated or not, we’re on the brink of a measles epidemic
The episode explains why rising susceptibility could threaten measles elimination in the United States and why vaccination remains the decisive safeguard.
- 1Measles can cause immune amnesia, erasing protection against infections the body previously learned to fight.
- 2Vitamin A can help deficient children but does not cure measles, while vaccination offers highly effective protection.
- 3Separate outbreaks could merge into sustained nationwide transmission as the susceptible population grows.
Don't miss
Michael Mina explains how measles can erase immune memory for other infections while leaving strong immunity to measles itself.
The brief
Measles is resurging in the United States, raising two linked questions: how deaths should be counted and whether separate outbreaks could become sustained transmission.
Epidemiologist Michael Mina explains immune amnesia, in which measles erases immune memory for other infections while creating strong protection against measles itself.
The discussion distinguishes deaths caused directly by measles from deaths associated with it, including a Pennsylvania infant who died after a ruptured spleen.
Vitamin A may save deficient children but is not a cure, and Mina argues that highly effective vaccination is the clearest route to reversing the trend.
As susceptible populations grow, isolated outbreaks could merge and cost the country its measles elimination status, making vaccination rates a public-health and political test.
Featuring
Michael MinaMentioned
Robert F. Kennedy Jr.
PennsylvaniaListen to the full episode and explore every guest, topic, and moment on PodLume.