SOME THING THAT CAN BE PASSED ON SUCH AS AN ILLNESS, LIKE THE FLU.In terms of human geo. it is the distance-controlled spreading of an idea, innovation, or some other item through a local population...
Yes, It is very contagious. It is usually caused by another virus and those viruses are contagious, as well.
Yes it is
Wear a face mask or something you think will stop the spreading of the disease and go see a doctor!!