Contagious disease and Measles

Contagious disease noun - Any disease easily transmitted by contact.

Measles and contagious disease are semantically related. In some cases you can replace term "Measles" with "Contagious disease", this terms are similar.

Measles noun - An acute and highly contagious viral disease marked by distinct red spots followed by a rash; occurs primarily in children.

Contagious disease and measles are semantically related. You can use "Contagious disease" instead a noun "Measles".