I haven't read through the 3 pages of posts on this, yet, but I will tell you that our dogs are on heartworm prevention year round and are tested yearly. We live in an area where mosquitos are abundant, and I actually have a dog that is a heartworm survivor. He came to me as a foster after having to undergo heartworm treatment when he was rescued from a high-kill animal shelter and tested positive for heartworms. I have seen too many dogs die from heartworms and too many have to go through treatment. I, personally, don't feel that it is worth the risk to not have my dogs on the prevention. The treatment is risky and it is expensive. I've even seen cats end up with heartworms here, which is very rare, but it CAN happen.
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Michelle |