Skip to main content
placeholder image

Identifying crucial gaps in our knowledge of the life-history of avian influenza viruses - An Australian perspective

Journal Article


Abstract


  • We review our current knowledge of the epidemiology and ecology of avian influenza viruses (AIVs) in Australia in relation to the ecology of their hosts. Understanding the transmission and maintenance of low-pathogenic avian influenza (LPAI) viruses deserves scientific scrutiny because some of these may evolve to a high-pathogenic AIV (HPAI) phenotype. That the HPAI H5N1 has not been detected in Australia is thought to be a result of the low level of migratory connectivity between Asia and Australia. Some AIV strains are endemic to Australia, with Australian birds acting as a reservoir for these viruses. However, given the phylogenetic relationships between Australian and Eurasian strains, both avian migrants and resident birds within the continent must play a role in the ecology and epidemiology of AIVs in Australia. The extent to which individual variation in susceptibility to infection, previous infections, and behavioural changes in response to infection determine AIV epidemiology is little understood. Prevalence of AIVs among Australian avifauna is apparently low but, given their specific ecology and Australian conditions, prevalence may be higher in little-researched species and under specific environmental conditions.

UOW Authors


  •   Klaassen, Marcel (external author)
  •   Hoye, Bethany
  •   Roshier, David (external author)

Publication Date


  • 2011

Citation


  • Klaassen, M., Hoye, B. & Roshier, D. (2011). Identifying crucial gaps in our knowledge of the life-history of avian influenza viruses - An Australian perspective. Emu: austral ornithology, 111 (2), 103-112.

Scopus Eid


  • 2-s2.0-79957870313

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 103

End Page


  • 112

Volume


  • 111

Issue


  • 2

Place Of Publication


  • Australia

Abstract


  • We review our current knowledge of the epidemiology and ecology of avian influenza viruses (AIVs) in Australia in relation to the ecology of their hosts. Understanding the transmission and maintenance of low-pathogenic avian influenza (LPAI) viruses deserves scientific scrutiny because some of these may evolve to a high-pathogenic AIV (HPAI) phenotype. That the HPAI H5N1 has not been detected in Australia is thought to be a result of the low level of migratory connectivity between Asia and Australia. Some AIV strains are endemic to Australia, with Australian birds acting as a reservoir for these viruses. However, given the phylogenetic relationships between Australian and Eurasian strains, both avian migrants and resident birds within the continent must play a role in the ecology and epidemiology of AIVs in Australia. The extent to which individual variation in susceptibility to infection, previous infections, and behavioural changes in response to infection determine AIV epidemiology is little understood. Prevalence of AIVs among Australian avifauna is apparently low but, given their specific ecology and Australian conditions, prevalence may be higher in little-researched species and under specific environmental conditions.

UOW Authors


  •   Klaassen, Marcel (external author)
  •   Hoye, Bethany
  •   Roshier, David (external author)

Publication Date


  • 2011

Citation


  • Klaassen, M., Hoye, B. & Roshier, D. (2011). Identifying crucial gaps in our knowledge of the life-history of avian influenza viruses - An Australian perspective. Emu: austral ornithology, 111 (2), 103-112.

Scopus Eid


  • 2-s2.0-79957870313

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 103

End Page


  • 112

Volume


  • 111

Issue


  • 2

Place Of Publication


  • Australia