How contagious is cellulitis?

No. Cellulitis is not directly contagious. The bacteria that cause Cellulitis is spread through direct contact, though, which can result in a bacterial infection and increase risk for Cellulitis.

It is VERY contageous.

Mostly people get cellulitis infection of dermis and subcutaneous tissues after minor skin trauma such as insect bites, cuts and burns. On this spot where skin was previously broken bacteria enters...

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...

It depends on the cause.