Are fleas and ticks dangerous to humans?
Not really If there is a dog and a human around, the flea will choose the dog. Flea saliva can cause irritations of various degrees depending on the persons and flea droppings have frequently been associated with allergies in kids. Ticks also, will not readily parasitise humans but can be carriers of the so called Tick-Borne diseases of which the tick fever virus is dangerous for humans too.