Cats are resistant hosts, and few circulating microfilariae are generally found. Because of this life cycle, it is necessary for a cat to be bitten by an infected mosquito in order to become infected with heartworms. Heartworms are not transmitted directly from one cat to another or from a dog directly to a cat.
What are the first signs of heartworms in cats?
The most common clinical signs of heartworm infection include: intermittent vomiting (sometimes of blood as well as of food); diarrhea; rapid and difficult breathing, coughing and gagging, all of which may be confused with feline asthma or some other bronchial disease; loss of appetite; lethargy and weight loss.
How likely is heartworm in cats?
Although dogs are the more natural host for this disease, cats are also susceptible to heartworm infection. It is estimated by the American Heartworm Society that, in any given community, the incidence of heartworm infection in cats is approximately 5% to 15% percent that of dogs who are not on preventive medication.
Can cats survive heartworms?
Less common signs of heartworm infection include vomiting, neurologic signs, collapse and sudden death. Many cats are able to overcome this phase of the disease process – and in some cases completely clear the heartworm infection – but not without damaging the small blood vessels in the lungs during the process.
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