Educational Articles

Infectious Diseases

  • Toxoplasma occurs worldwide. However, infection is uncommon in pet cats that do little or no hunting and primarily or exclusively eat commercial cat foods. Despite the high number of cats infected with T. gondii, very few show significant clinical signs. Humans are most commonly infected by eating contaminated food. Most people infected with this organism do not develop clinical disease. However, infection during pregnancy may be transmitted to the fetus and sometimes cause severe damage. Many pet cats will never be exposed to Toxoplasma and, therefore, cannot pass the infection on to humans.

  • Trifluridine is an antiviral topical medication used to treat viral infections of the eye, such as herpesvirus-1 in cats. Give as directed. Side effects include eye irritation. Do not use in pets with an allergy to this medication. If a negative reaction occurs, please call the veterinary office.

  • Tularemia is an infection of the bacteria Francisella tularensis and is most common in rabbits and rodents. Infection in cats occurs from ingestion of an infected animal, drinking contaminated water, or getting bitten by a blood-sucking insect. Clinical signs include enlarged lymph nodes and draining abscesses. Treatment includes antibiotics, surgical removal of any draining abscesses, and any other supportive care warranted by the cat's condition. Tularemia is a reportable zoonotic disease.

  • Tularemia is an infection of the bacteria Francisella tularensis and is most common in rabbits and rodents. Infection in dogs occurs from ingestion of an infected animal, drinking contaminated water, or getting bitten by a blood-sucking insect. Tularemia causes mild illness in healthy dogs. More severe clinical signs include enlarged lymph nodes and draining abscesses. Treatment includes antibiotics, surgical removal of any draining abscesses, and any other supportive care warranted by the dog's condition. Tularemia is a reportable zoonotic disease.

  • Uveitis is an inflammation of one or more of the structures making up the uvea (part of the eye). Signs of uveitis are severe pain with an intense reddening of the visible parts of the eye. Measurement of intraocular pressure is often performed to diagnose uveitis. Treatment involves reducing the pain and inflammation in the eye as well as treating the initial cause of the disease.

  • There are five primary reasons for vaccination failure. Vaccine inactivation is one reason and is most commonly caused by warming during shipping and handling. In addition, vaccines are not always 100% effective. Cats may also be unhealthy or too young, leading to vaccine failure. Interference by maternal antibodies can lead to the vaccine being blocked. Lastly, cats receiving overwhelming exposure to a virus may have a failure in the effectiveness of the vaccine.

  • There are six primary reasons for vaccination failure. Vaccine inactivation is one reason and is most commonly caused by warming during shipping and handling. In addition, vaccines are not always 100% effective. Dogs may also be unhealthy or too young, leading to vaccine failure. Interference by maternal antibodies can lead to the vaccine being blocked.

  • Vaccines are necessary to reduce infectious disease-caused illnesses in cats. They work by stimulating the body's immune system to recognize and fight a particular microorganism such as a virus, bacteria, or other infectious organism. The vaccine helps the body prevent infection or lessen the severity of the infection, and promotes rapid recovery.

  • Veterinarians routinely recommend certain vaccines for all dogs (called core vaccines) while they recommend others more selectively, according to the dog’s environment and lifestyle. Vaccines work by stimulating the body's immune system to recognize and fight particular microorganisms such as a virus, bacteria, or other organism. The vaccine helps prevent infection or lessens the severity of infection and promotes rapid recovery.

  • Valley fever is an infection called Coccidioidomycosis, caused by the soil-dwelling fungus Coccidioides immitis. In the US, it is more commonly found in the southwestern states. Dogs are infected by inhaling spores released by disturbance of soil. These spores infect the lungs, forming spherules, and may migrate to different areas of the body, including the bones, joints, eyes, and rarely the brain. Dogs with weakened immune systems can become ill. Most dogs that are treated appropriately will recover from this disease.