"Ontario quarterly aquatic animal health update. Topics include laboratory results, Infectious Hypodermal and Haematopoietic Necrosis (IHHN), and reported cases of diseases including Infectious pancreatic necrosis in brook trout in New Brunswick, infectious salmon anemia in Atlantic salmon in New Brunswick and Newfoundland, koi herpesvirus disease in common carp in Ontario, and tilapia lake virus in the US."