transmittableadjective
uk/trænzˈmɪt.ə.bəl//trænsˈmɪt̬.ə.bəl/able to be passed or sent from one person, thing, or place to another:
Malaria is a dangerous, easily transmittable disease known to be carried by mosquitoes.
Our pets may be host to a long list of diseases and parasites that are easily transmittable to humans.