What is Heartworm disease in cats?
by Dr. N.J.Hayes, DVM Heartworm is a mosquito borne parasite. The parasite Dirofilaria immitis is transmitted through mosquito bites to dogs and, occasionally, cats. Because the disease is borne by mosquitoes, it is very common in areas where mosquitoes are found. This is especially true in the southern states, such as Florida and the gulf area, as well as the Midwest and Mississippi valley areas. Typically it affects dogs; however in rare cases cats can also be affected. On average three to 10% of outdoor cats will be affected by heartworm. In most cases heartworm is asymptomatic in cats (without symptoms); however, it can be serious and even deadly. How is Heartworm Disease Diagnosed? Symptoms of heart worm disease in cats are very vague and include: • coughing • difficulty breathing • and vomiting. • Sudden death is also commonly seen. It is difficult to test for heartworm in cats as they typically have low worm burdens – (less than five worms in the heart). This makes it difficult
