Encephalitis Caused by a Lyssavirus in Fruit Bats in Australia
1996

First Evidence of a Lyssavirus in Australian Fruit Bats

Sample size: 2 publication Evidence: moderate

Author Information

Author(s): Graeme C. Fraser, Peter T. Hooper, Ross A. Lunt, Allan R. Gould, Laurece J. Gleeson, Alex D. Hyatt, Gail M. Russell, Jaqueline A. Kattenbelt

Primary Institution: NSW Department of Agriculture, Wollongbar, Australia; CSIRO Division of Animal Health, Geelong, Australia

Hypothesis

Is there a rabies-like disease present in Australian fruit bats?

Conclusion

This study provides the first evidence of an endemic lyssavirus in Australia, specifically in the black flying fox.

Supporting Evidence

  • The virus was isolated from the tissue of a sick juvenile black flying fox.
  • Histological examination showed severe nonsuppurative encephalitis in the affected bats.
  • PCR tests indicated the presence of a lyssavirus in the bat tissues.
  • Electron microscopy revealed classical bullet-shaped rhabdoviruses in the brain of affected mice.

Takeaway

Scientists found a new virus in Australian bats that is similar to the rabies virus, which could be important for public health.

Methodology

The study involved isolating the virus from bat tissues and conducting various tests including immunohistochemistry and PCR.

Limitations

The study is limited by the small sample size and the need for further genetic and antigenic analyses.

Participant Demographics

The bats studied were wild native Australian black flying foxes collected in northern New South Wales.

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