Another case of canine influenza has been identified in Windsor-Essex, Ontario. Investigation of the source is underway and measures are in place to try to contain the virus.

As with the other recent cluster of H3N2 canine influenza cases in that region, there is concern about entry of this virus into a naive canine population where there is little to no pre-existing immunity from previous exposure or vaccination.

More information to come.

Image: Colourized transmission electron microscopic (TEM) image of the ultrastructural details of an influenza virus particle. (CDC Public Health Image Library 10073)