Measles is one of the deadliest and most contagious infectious diseases – and one of the most easily preventable

While most people's symptoms improve, 1 in 5 unvaccinated children will be hospitalized, 1 out of every 1,000 will develop brain swelling that can lead to brain damage, and up to 3 of every 1,000 will die. For unvaccinated people who are pregnant, measles infection can lead to miscarriage, stillbirth, premature birth and low birth weight...

https://theconversation.com/measles-is-one-of-the-deadliest-and-most-contagious-infectious-diseases-and-one-of-the-most-easily-preventable-224493