Usutu virus (USUV) is a zoonotic arbovirus causing systemic and neuroinvasive diseases in birds and flu-like or sporadic neuroinvasive disease in humans. USUV-associated encephalitis is morphologically well-characterized in birds, while the mechanisms of cell-damage in spontaneously infected birds remain poorly understood. For the closely related West Nile virus, apoptosis significantly contributes to the pathogenesis of othof...

Mycobacterium ulcerans pseudoshottsii is a mycolactone‐producing bacterium previously isolated from Striped Bass ( Morone saxatilis (Walbaum)) from Chesapeake Bay and adjacent waters of the Atlantic Coast of North America. We report the first molecular detection of this pathogen in the native Gulf strain of Morone saxatilis collected from the Pearl River, Mississippi (USA). Molecular identification was conducted using a novel...

Mass mortality events (MMEs) are defined as the death of large numbers of fish over a short period of time. These events can result in catastrophic losses to the Atlantic salmon aquaculture industry and the local economy. However, they are challenging to understand because of their relative infrequency and the high number of potential factors involved. As a result, the causes and consequences of MMEs in Atlantic salmon aquacul...