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CVM News

Issues Associated with Salmonella in Pet Foods

Posted by: Angela Ellis, DVM, PhD & Susan Sanchez, BSc, MSc, PhD, MIBiol, CBiol
Earlier this year, an outbreak of salmonellosis was associated with tainted peanut butter products from the Peanut Corporation of America, and products are still being recalled as this article is being written. Although most of the products involved were for human consumption, some dog biscuits, rawhides, and other pet treats were among the recalled items. In addition, many pet owners admitted to having fed peanut butter crackers and other recalled human foods to their pets. Given recent deaths in animals due to melamine/cyanuric acid and aflatoxin contaminated dog and cat foods, it is understandable that owners are concerned about food recalls. However, Salmonella-contaminated pet treats and foods actually pose a risk to owners as well as to their pets. Continue Reading →

On the Wilder Side…Ranavirus in Amphibians

Posted by: Debra Miller, DVM, PhD
Ranaviruses have been implicated as one of the causes of worldwide amphibian declines. These viruses can be deadly to amphibians and have caused mass mortality events in North America. Clinical signs of ranavirus infection may be vague but include hemorrhaging of the skin, lethargy, and swelling (edema). Multiple internal organs may be affected; however, the kidney and liver often are targeted, resulting in hemorrhage and necrosis. In some species, mortality can occur as early as within a few days of exposure. Continue Reading →

Diagnosis of Skin Disease - Skin Biopies

Posted by: Pauline M. Rakich, DVM, PhD, DACVP
One of the most common reasons for bringing pets to a veterinarian is skin disease. In many cases, the diagnosis is obvious and treatment is straightforward and successful. However, diagnostic tests are necessary to determine the cause when lesions are unusual; suggestive of serious diseases that require expensive, dangerous, or long term treatment; or do not respond to treatment as expected. Skin biopsies are frequently the most direct means of making a diagnosis because they are relatively easy to do, rapid, cost-effective, and safe for the patient. Continue Reading →

Selection, Collection & Submission of Samples for Histopathology

Posted by: Moges Woldermeskel, DVM, PhD, DACVP
Histopathology is a powerful and inexpensive diagnostic method. Submission of the right specimen in the right fixative is crucial for microscopic evaluation of biopsy specimens and organ or tissue samples from necropsies. Properly selected, appropriately collected and preserved specimens are very helpful in establishing an accurate diagnosis. Continue Reading →

Immunohistochemistry Basics & Diagnosis of Neoplasia

Posted by: Angela Ellie, DVM, PhD
Immunohistochemistry has been available for many years, but is becoming much more widely used with advances in automated staining processes, available antibodies, and knowledge. The principle behind the technique is relatively simple: all cells have antigens, and the distribution of antigens is tissue-dependent. Continue Reading →

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