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April is Heartworm Awareness Month—did you know that heartworms are some of the most dangerous parasites out there? Fortunately, they’re easy to prevent! Here, your Portland, OR veterinarian tells you about the basics of heartworm disease and how to prevent the problem before it takes hold. Transmission and Symptoms Young heartworms (microfilariae) circulate in animals’ bloodstreams and are picked up by mosquitoes when they feed on an infected animal. The mosquito can then transmit heartworms … Read More »