In this issue:

Update from the Director [2]

External Testing at the Animal Health Laboratory [3]

OAHN update [4]

Staff highlights [5]

Ruminants

Presumptive polioencephalomalacia in beef cattle: A deceiving etiology [6] 

Johne's disease (Mycobacterium avium paratuberculosis) infection in goats  [7]

Lancet fluke in the liver of a bison [8]

Swine

Swine abortion: Are you stresed?  [9]

Porcine circovirus-2 (PCV-2) associated disease in swine [10]

Avian/fur/exotic

Columnaris disease in rainbow trout [11]

Equine

Chronic progressive lymphederma in a draft horse [12]

Companion animals

Sarcoptic mange in a dog [13]

New CLSA guidelines - enrofloxacin/marbofloxacin [14]

Blastomycosis in a cat presenting as suspected mammary carcinoma [15]