1. A mosquito bites an infected dog and picks up the microfilaria . 2. Those microfilaria go through a larval stage in the mosquito. 3. When the mosquito bites another dog, it passes out infected microfilaria . 4. This organism, however, is considerably smaller and thinner than a microfilaria . 5. In either case, the microfilaria is the stage which develops from the egg. 6. Cutting open some of Benach ticks, Burgdorfer noticed microfilaria ( microscopic worm young ). 7. This was a subject he had been studying recently, only these microfilaria were different. 8. _Have your dog tested each year for the presence of microfilaria in the blood stream. 9. _Administer a monthly dose of medication that prevents the development of microfilaria into adult heartworms. 10. There, they undergo development, from microfilaria , to first, second, and finally third stage larvae.
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