Nov 10, 2005, 1:24 AM
Post #9 of 17
There might be some misunderstanding. Get a brochure of heart worm and go through it. Heart worm is transmitted by mosquito and that is the only way. Mosquito pick-up microfilaria L1 from infecteed dog. L1 spends about 2 weeks in mosquito body and migrate to salivary gland as L3 (3rd stage of larva). The next time the mosquito feasts, L3 enter the skin. Slowly it develop into L4 and L5 and enter the blood circulation and into the heart to become juvenile and adult heartworm. Adult heartworm mature and give birth to babies, L1 and thus complete the life cycle. Your dog can't even get infection from infected dog from blood transfusion.
Re: [silvrash] Heartgard for Older Dogs with Baby Worms??
[In reply to]
OK, it is impossible to have baby (L1) and not having Adult. If one of your dog have adult and baby and one only baby, definitely both will have adult. There is only a few possiblities, (1)your dog was treated for heartworm before, (2) False negative from the test. (3) Heartworm burden too high.
The dog must have adult heartworm to produce L1. L1 must enter mosquito body to become L3 (infective heartworm baby). L1 will not become adult heartworm by itself without the help from mosquito. The use of heartguard does not stop the maturing of Heartworm. Yes it killed L1, L3-L4, but not L5 and adult. The effect is the same, you dog won't get extra heartworm but the explanation is inaccurate. With this method of treatment, it is actually a rally between your dog's life and heartworm's life, in otherword who died first lost the battle. Heartguard does not kill adult, and the adult heartworm can live up to 5 years in the heart. So see who died first.