Question

In US hospitals there are 4 common routes of transmission of infectious disease what are they

Answer 1

Contact: direct contact with the infected skin, mucous membranes, or bodily fluids
Common Vehicles: contaminated food or water, or something like blood 
Vectors: things like fleas, mites, ticks, mosquitos, etc.
Airborne Transmission: residue from evaporated droplets or dust particles containing microorganisms are in the air where we inhale themi believe this is it