He mate ka horapa haere mai i tētahi tangata ki tangata kē, mai i tētahi rauropi ki rauropi kē. Mā te whakapā ā-tinana, mā te kawea rā runga i te hau takiwā rānei e whakawhitia ai ēnei momo mate. Hei tauira o te mate rere, ko te kohi, ko te koroputaputa me te mate ārai-kore.
A disease which spreads from one person or organism to another, either through direct contact or through being carried in the air. Examples of contagious diseases include tuberculosis, smallpox and AIDS.