Inoculation campaigns that protect children and adults from dangerous diseases rely on a delicate web of state and federal laws and programs. If senior officials cast doubt on vaccine safety, the whole system might collapse, especially in red states.
Arthur Allen / KFF Health News
What the polio case in New York tells us about the end of polio
The Rockland County case isn’t expected to cause a major outbreak, but it shows how even this rare disease can pop up in undervaccinated communities.
After billions of dollars and dozens of wartime declarations, why are vaccines still in short supply?
The Trump and Biden administrations both imposed wartime production requirements. But industry experts say the vast quantities of raw materials and specialty equipment needed for billions of newfangled vaccines have required herculean logistical efforts.
Which vaccine should I be angling for? The one you’re offered first, experts advise
Late-stage trial results for the Johnson & Johnson vaccine showed it was 66% effective overall in preventing moderate to severe covid illness, while the Pfizer-BioNTech and Moderna vaccines were more than 90% effective. But the numbers aren’t exactly comparable. And all three shots prevent hospitalization and death.

