By breaking the chain of a disease's transmission, herd immunity protects the most vulnerable among us, including newborns and sick people who can't receive vaccines. But in order for it to work, a certain percentage of people in a community must be vaccinated.
This very important concept may feel abstract when explaining it to the doubtful or the complacent, so here's a stark visual created by Reddit user theotheredmund, using data from Epidemiologic Reviews.
See, in a startling way, how vaccinating your kid helps others.
There's more than one reason to skip vaccinations, and not all of them fit into our stereotypes of how anti-vaxxers think. A new analysis identifies four reasons people skip the shots, and how best to convince each to reconsider.
How Herd Immunity Works [Reddit]