Infectious disease and Pertussis

Infectious disease noun - A disease transmitted only by a specific kind of contact.

Pertussis and infectious disease are semantically related. In some cases you can replace term "Pertussis" with "Infectious disease", this terms are similar.

Pertussis noun - A disease of the respiratory mucous membrane.

Infectious disease and pertussis are semantically related. You can use "Infectious disease" instead a noun "Pertussis".