Sentences with phrase «microscopic baby worms»

Adult female heartworms living in an infected dog, fox, coyote, or wolf produce microscopic baby worms called microfilaria that circulate in the bloodstream.

A mosquito bites an animal infected with heartworm and microscopic baby worms, known as microfilaria, are transferred to the mosquito.

It is possible for the microscopic baby worms (called microfilaria) to pass through the bloodstream of the mother into the puppies; however, these worms can not develop into adults and should be eliminated when the puppies receive their first dose of heartworm preventive.