Modes of Disease Transmission
oVectorborne Transmission is a form of Direct
and Indirect Contact.
1.The
person is “bit” by the arthropod (i.e., flea, tick, mosquito, etc) which is carrying the infected blood of another person or animal (Direct)
2.The
arthropod leaves disease germs on a surface
or object, which is then contacted by the person (Indirect); all
four criteria for infection
must be present (see previous slides)