Title:
Contemporary outbreaks of different avipoxviruses in Humboldt Penguins of wild animal park Planckendael and in chickens of commercial poultry farms in Belgium
Author(s):
V.R.A.P. REDDY, F. VERCAMMEN, I. TRUS, H.J. NAUWYNCK
Abstract:
In the present study, the first outbreak of a penguinpox virus (PPV) in Humboldt penguins(Spheniscus humboldti) and four outbreaks of fowlpox virus (FPV) in layer chickens arereported. Clinically, cutaneous wart-like growths were observed around the eyes in four juvenileHumboldt penguins and cutaneous nodular lesions in the comb, wattles, around the eyesand other unfeathered skin parts of layer chickens. Histopathology (FPV and PPV), electronmicroscopy (PPV), virus isolation (FPV) and PCR amplification (FPV and PPV) confirmed thatboth isolates were avipoxviruses (APVs). According to the phylogenetic analysis of the partial P4bcore protein gene, the Belgian Humboldt PPV clustered with sequences of free-range (domesticand synanthrope bird species) and wild bird species of the United States and Europe (99 - 100%homology), and all four Belgian FPV isolates clustered with FPV isolates of chickens, turkeys,canary and FPV attenuated live vaccines from all over the world (100% homology).