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Aspergillus spp. seropositivity in New Zealand penguins

Abstract

One hundred-fifty Yellow-eyed penguins (Megadyptes antipodes) of 8 populations, 20 Little blue penguins (Eudyptula minor) of 2 populations, 9 Rockhopper penguins (Eudyptes chrysocome), and 5 Adelie penguins (Pygoscelis adeliae) from New Zealand (NZ) and Antarctica (latitude range; 39° 30′ S – 77° 13′ S) were tested by indirect enzyme-linked immunosorbent assays (ELISA) for fungalAspergillus spp. IgG. One hundred-ten of 184 (60%) penguins were seropositive, and seroprevalence was related to the latitudinal location of a population. AllE. chrysocome from Campbell Island and AntarcticaP. adeliae were seronegative. The seroprevalence varied significantly (p<0.01) from 14% to 80% amongM. antipodes populations, with a mean of 60%. Seroprevalence was 100% forE. minor populations. The mean absorbances varied significantly (p<0.01) from 0.32 to 0.70 forM. antipodes populations, and were 0.44 and 0.51 forE. minor. Seventeen penguins (11E. minor, 6M. antipodes) of 110 (15%) seropositive birds had absorbance within the 95.0% absorbance confidence interval of fatal aspergillosis of captive Jackass penguins (Spheniscus demersus).

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Abbreviations

Ab:

antibodies

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Correspondence to Thaddeus K. Graczyk.

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Graczyk, T.K., Cockrem, J.F. Aspergillus spp. seropositivity in New Zealand penguins. Mycopathologia 131, 179–184 (1995). https://doi.org/10.1007/BF01102898

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Keywords

  • Aspergillus spp.
  • Avian aspergillosis
  • ELISA
  • Penguins
  • New Zealand