In this issue:

AHL User's Guide and Fee Schedule - May 1, 2023 [2]

Update from the Director [3]

Specimen Reception update [4]

Staff Highlights [5]

OAHN update [6]

Update on bacterial taxonomy [7]

Ruminants

Congenital cardiac vascular malformation in a calf [8]

Yersinia pseudotuberculosis abortions in small ruminants [9]

Congenital vitamin A and mineral deficiencies in beef calf [10]

Swine

First detection of Glaesserella australis in swine herds in Ontario [11]

First detection of Porcine Astrovirus-4 with pneumonia in suckling pigs in Ontario [12]

Avian/fur/exotic

Enterococcus cecorum: Changing clinical presentation in an emerging poutlry pathogen [13]

Selection of environmental tests for detection of Enterococcus cecorum [14]

Equine

Investigation into circannual variation in endogenous plasma ACTH in Ontario senior horses [15]

Interstitial pneumonia in a donkey [16]

Companion animals

Parvoviral myocarditis in littermate puppies and a review of AHL cases 2013-2023 [17]

Ulcerative dermatitis and vasculitis due to cutaneous Pseudomonas aeruginosa infection following grooming [18]