Mosquito's don't shunt blood between different creatures. Mosquito-transmitted diseases are transmitted via the mosquito's anticoagulant saliva or their poop. M

Mosquito's don't shunt blood between different creatures. Mosquito-transmitted diseases are transmitted via the mosquito's anticoagulant saliva or their poop. Mosquito-transmitted parasites must also be able to reproduce inside the mosquito and many go through one or more stages of their life cycle inside it. This is why you can get malaria from a mosquito but not AIDS.