tarda affecting multiple species that inhabited a natural pond in the state of São Paulo, Brazil. However, naturally occurring outbreaks that affect various species besides fishes are seldom described.Īim: To report an outbreak of acute mortality caused by E. tarda is a common bacterium amongst Antarctic birds and mammals.īackground: Edwardsiella tarda infections are frequent causes of severe outbreaks in the fish farming industry besides representing possible zoonotic risks. None of the evaluated animals showed clinical signs of disease. tarda isolation from southern giant petrels (Macronectes giganteus), brown skuas (Stercorarius lonnbergi), south polar skuas (Stercorarius maccormicki), kelp gulls (Larus dominicanus), greater sheathbills (Chionis albus), chinstrap penguins (Pygoscelis antarctica), eggs of Adelie penguins and Weddell seals (Leptonychotes weddelli). The classic Edwardsiella tarda was isolated from 281 (15.1%) of the 1,855 Antarctic wildlife samples. Of Adelie penguins (Pygoscelis adeliae) were collected in order to isolate E. During the summer of 20 in the Potter Peninsula, andĭuring the summer of 20 in Hope Bay, a total of 1,805 faecal samples from Antarctic animals and 50 infertile eggs The purpose of this work was to determine the prevalence of Edwardsiella tarda in Antarctic wildlife, including birds, mammals and fish.
However, there is little data available regardingĮndemic and exotic diseases. For many years, the Antarctic region has been isolated from human activity.
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