Last year, the U.S. saw the second-highest rates of measles since the disease was eliminated in 2000, partly due to parents not getting their children immunized.
"It really is almost a crime to allow your child to go unimmunized," the "Charlie and the Chocolate Factory" author argued.
Researchers analyzed posts on popular anti-vaccine Facebook pages.
The mother is philosophically opposed to vaccinating her son for transmissible, potentially fatal and otherwise preventable diseases.
"I would rather sit behind bars for standing up for what I believe in," the mother told a local news reporter.
"Herd immunity" still isn't statistically achievable in small pockets of the country, according to a new report from the CDC.
A bill to remove 'personal belief exemptions' from vaccine requirements has stalled.
The man behind the anti-vaccine craze is mad as hell, and still convinced he's right.
A rash of measles cases in Colorado, Utah and Washington State and California have been traced back to the popular theme park.