Library
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Anaphylaxis is an acute severe allergic reaction caused by an overreaction of the body’s immune system to an allergen such as a food protein, medication, vaccine antigen or other chemical. The most common signs include itching, cutaneous edema, hives, excessive drool, vomiting, diarrhea or respiratory distress. Diagnosis is made based on history and physical exam.
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Anaplasmosis is a tick-borne disease caused by the infectious bacterial organism Anaplasma phagocytophilum. It is transmitted through bites of the deer tick (also known as the black-legged tick) and the Western black-legged tick. A lesser form of anaplasmosis is caused by Anaplasma platys and is transmitted by the brown dog tick. Dogs with anaplasmosis often have many of the same symptoms as those with Lyme disease, and infection with both agents (co-infection) is not uncommon.
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Anisocoria is a condition in which the pupils of the cat's eyes are different sizes. Anisocoria is a symptom of an underlying condition or disease that needs to be identified and treated. Prognosis is guarded pending the diagnosis and treatment. Blindness may occur as a result of the underlying condition.
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Anisocoria is a condition in which the pupils of the eyes are different sizes; one pupil is larger than the other. Anisocoria is a symptom of an underlying condition or disease that needs to be identified and treated. Prognosis is guarded pending the diagnosis and treatment. Blindness may occur as a result of the underlying condition.
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Birds of all species are innately designed to hide symptoms of illness until later stages of a disease process. Any signs of a change in appetite or behavior should be brought to the attention of an avian veterinarian. If an avian patient stops eating, this becomes a life-threatening situation quickly.
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Anthrax is a bacterial infection that rarely affects cats. It is not a new infection but has been revisited due to concerns about bioterrorism. Infection in cats usually occurs through ingestion of infected carcasses, causing clinical signs such as vomiting, diarrhea, and swelling of the face and neck. Treatment is highly effective in the early stages of infection.
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Anthrax is a bacterial infection that can affect dogs if exposed to large amounts of bacterial-produced spores such as by terrorist attack or ingesting large quantities from infected meat. The organism that causes anthrax, Bacillus anthracis, produces spores that are resistant to typical disinfection methods and heat. These spores can last up to 40 years in the environment. Anthrax is usually spread through inhalation or ingestion of spores from infected meat, although cutaneous exposure can occur. Symptoms depend on the type of exposure and can include: black skin pustules, pneumonia, acute gastroenteritis with hemorrhagic vomiting and diarrhea, oral ulcerations, fever, weight loss, swelling of the neck, face and head and ultimately sepsis and death if not treated. Treatment requires antibiotics and can be highly effective in early stages. There currently is no canine vaccine.
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Antibiotic-resistant bacterial infections are bacterial infections that are minimally or no longer responsive to commonly used antibiotics. Although these bacterial infections occur naturally, the frequent and/or inappropriate use of antibiotics accelerates the process. Cats with certain medical conditions may also be predisposed.
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Antibiotic-resistant bacterial infections are bacterial infections that are minimally or no longer responsive to commonly used antibiotics. Although these bacterial infections occur naturally, the frequent and/or inappropriate use of antibiotics accelerates the process. Dogs with certain medical conditions may also be predisposed.
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Aortic stenosis is a heart disease that is present at birth. Cats affected with aortic stenosis have a narrowing at the aortic valve of the heart. The clinical signs of aortic stenosis vary depending on how severe the stenosis is; some cats remain asymptomatic throughout their life, while other cats begin showing clinical signs at an early age and can experience sudden death. The treatment of aortic stenosis depends upon the severity of the condition.