late 14c., gatherer of taxes, etc., from Anglo-French collectour collector (of money or taxes; Old French collector, Modern French collecteur), from Late Latin collector, agent noun from colligere (see collect).
Ringworm is contagious. It spreads when you have skin-to-skin contact with a person or animal that has it. It can also spread when you share things like towels, clothing, or sports gear. You can also get ringworm by touching an infected dog or cat, although this form of ringworm is not common.
Ringworms (Dermatophytosis) are external parasites. This type of worm is not technically a worm, but rather a fungal disease of the skin and hair. Ringworm is highly contagious to you and to other animals. It's always a good idea to wash your hands after petting a cat, especially one you don't know.