Coccidiosis is an intestinal tract infection caused by a one-celled organism or protozoa called coccidia. Coccidia are microscopic parasites that live within the cells that line the intestine. Many cats that are infected with coccidia do not have diarrhea or any other clinical signs. When the oocysts are found in the stool of a cat without diarrhea, they are generally considered a transient, insignificant finding. However, in kittens and debilitated adult cats, coccidiosis can cause severe, watery diarrhea, dehydration, abdominal distress, and vomiting. Kittens are commonly diagnosed with coccidiosis. The most common drug used to treat coccidiosis is a sulfa-class antibiotic, sulfadimethoxine. Cats are frequently reinfected from the environment, so disinfection is important.
Cuterebra is the genus or scientific family name of the North American rabbit or rodent botfly. Twenty-six species of Cuterebra are known to occur in the United States and Canada. Cuterebra larvae develop within the tissues of certain animal hosts, and during this phase of their life cycle, they are commonly referred to as 'warbles'.
The ear mite is a surface mite that lives on cats, dogs, rabbits, and ferrets. It is usually found in the ear canal but it can also live on the skin surface. Ear mites are a common cause of ear disease and infection. Infestations are a very common problem in puppies and kittens, although pets of any age can be affected.
Demodecosis is a parasitic skin condition, caused by demodex mites. These microscopic mites can be found on the skin of all animals, but in some cases they proliferate to excessive levels and cause clinical signs. While demodecosis is more common in dogs than cats, there are two species of demodex mites that can affect cats: Demodex cati and Demodex gatoi.
Feline upper respiratory infection (URI) is one term for a respiratory infection caused by one or more viral or bacterial agents. Synonyms for this condition include feline infectious respiratory disease and feline upper respiratory disease complex (URD).
An allergy occurs when the cat's immune system overreacts or is hypersensitive to foreign substances called allergens. When a flea bites a cat to consume a blood meal, some of its saliva is injected into the skin. In an allergic cat, just one bite can result in intense itching that can last for days. Many flea-allergic cats chew or lick the hair off their legs. Since the flea saliva causes the reaction, the most important treatment for flea allergy is to prevent fleabites by treating the cat and environment for fleas. Corticosteroids can be used to block the allergic reaction and give immediate relief to a cat suffering from the intense itching of FAD.
The most common flea found on cats and dogs is the cat flea, although any species of fleas, including fleas from rabbits, squirrels or other wildlife, can be found on cats. Even though fleas may be in your house, you probably will not see them. Fleas need to be eliminated from 1) your cat, 2) any other cats and dogs that you have, 3) your home and yard. Although most topical insecticides kill adult fleas, many have limited effectiveness because they only work for a few hours after application. Ensure that the product is labelled for use in cats, as some dog products may be poisonous to cats.
Heartworms are a blood-borne parasite called Dirofilaria immitis that reside in the heart or adjacent large blood vessels of infected animals. Recent studies of cats with heart and respiratory diseases have found an incidence of heartworms that is far greater than previously thought. Veterinarians now strongly recommend that all cats receive year-round monthly heartworm preventives in areas where mosquitoes are active all year round.