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Michaela Esteban, DVM, DACVIM (Neurology), Oradell Animal Hospital, Paramus, New Jersey

Dysfunction of the vestibular system is a common neurologic disorder. Localization of vestibular system lesions is crucial to generate a differential list and diagnostic plan appropriate for individual patients, as well as to provide owners with a realistic prognosis for their pet. The following cases illustrate some common, and not-so-common, neurologic presentations of...
Posted Wed at 1:39pm


An industry-backed replacement for mulesing sheep has been deemed a disappointment, with woolgrowers complaining about the long list of restrictions on its use.

Corbett Technologies spent years working with Australian Wool Innovation (AWI) to develop SkinTraction, which reduced wool growth when it's applied around the sheep's tail.

Approved by the Australian Pesticides and Veterinary Authority (APVMA) 12 months ago, the...
The Department of Agriculture and Water Resources has taken the dramatic step of cancelling an exporter’s license after a consignment of Australian dairy heifers tested positive to Johne’s disease in Japan, prompting it to suspend all Australian cattle imports.

[Read more]

Alister Trier, chief executive of the NT's Department of Primary Industry, said over the past two years, the government had been approached by several Chinese companies wanting access to feral donkeys in the Northern Territory.

"The interest has been quite significant; we've had well over a dozen enquiries from different Chinese interests," Mr Trier said....
Hypoglycin A (HGA) in seeds of Acer spp. is suspected to cause seasonal pasture myopathy in North America and equine atypical myopathy (AM) in Europe, fatal diseases in horses on pasture.

In previous studies, this suspicion was substantiated by the correlation of seed HGA content with the concentrations of toxic metabolites in urine and serum (MCPA-conjugates) of affected horses. However, seed sampling was conducted after rather than during an outbreak of the disease.

The aim of this study was to further confirm the causality between HGA occurrence and...
A three-year-old entire male lionhead rabbit was presented with a history of lethargy, anorexia, gastrointestinal (GI) hypomotility and respiratory signs. Lead toxicosis was suspected based on radiographic findings of radiodense particles in the GI tract and the rabbit’s history of chewing on paint. A serum lead assay of 461µg/L (reference range less than 100µg/L) confirmed the diagnosis. The rabbit made a full recovery following chelation therapy with calcium ethylenediaminetetraacetic acid and supportive care.

Lead toxicosis is, unfortunately, still...
The purpose of this manuscript is to revise and update the previous consensus statement on inflammatory airway disease (IAD) in horses.

Since 2007, a large number of scientific articles have been published on the topic and these new findings have led to a significant evolution of our understanding of IAD.

[Read full article]
Equine protozoal myeloencephalitis (EPM) is a serious disease of horses, and its management continues to be a challenge for veterinarians.

The protozoan Sarcocystis neurona is most commonly associated with EPM. S. neurona has emerged as a common cause of mortality in marine mammals, especially sea otters (Enhydra lutris). EPM-like illness has also been recorded in several other mammals, including domestic dogs and cats.

This paper updates S. neurona and EPM information from the last 15 years on the advances regarding life cycle,...
The complex and unresolved evolutionary origins of the 2009 H1N1 influenza pandemic exposed major gaps in our knowledge of the global spatial ecology and evolution of influenza A viruses in swine (swIAVs).

Here we undertake an expansive phylogenetic analysis of swIAV sequence data and demonstrate that the global live swine trade strongly predicts the spatial dissemination of swIAVs, with Europe and North America acting as sources of viruses in Asian countries.

In contrast, China has the world’s largest swine population but is not a major exporter of live...

Sebaceous adenitis (SA) and Addison’s disease (AD) increased rapidly in incidence among Standard Poodles after the mid-twentieth century. Previous attempts to identify specific genetic causes using genome wide association studies and interrogation of the dog leukocyte antigen (DLA) region have been non-productive. However, such studies led us to hypothesize that positive selection for desired phenotypic traits that arose in the mid-twentieth century led to intense inbreeding and the inadvertent amplification of AD and SA...