The zoonotic flaviviruses of southern, south-eastern and eastern Asia, and Australasia: the potential for emergent viruses
MetadataShow full item record
The genus Flaviviridae comprises about 70 members, of which about 30 are found in southern, south-eastern and eastern Asia and Australasia. These include major pathogens such as Japanese encephalitis (JE), West Nile (WN), Murray Valley encephalitis (MVE), tick-borne encephalitis, Kyasanur Forest disease virus, and the dengue viruses. Other members are known to be associated with mild febrile disease in humans, or with no known disease. In addition, novel flaviviruses continue to be discovered, as demonstrated recently by New Mapoon virus in Australia, Sitiawan virus in Malaysia, and ThCAr virus in Thailand. About 19 of these viruses are mosquito-borne, six are tick-borne, and four have no known vector and represent isolates from rodents or bats. Evidence from phylogenetic studies suggest that JE, MVE and Alfuy viruses probably emerged in the Malaya-Indonesian region from an African progenitor virus, possibly a virus related to Usutu virus. WN virus, however, is believed to have emerged in Africa, and then dispersed through avian migration. Evidence suggests that there are at least seven genetic lineages of WN virus, of which lineage 1b spread to Australasia as Kunjin virus, lineages 1a and 5 spread to India, and lineage 6 spread to Malaysia. Indeed, flaviviruses have a propensity to spread and emerge in new geographic areas, and they represent a potential source for new disease emergence. Many of the factors associated with disease emergence are present in the region, such as changes in land use and deforestation, increasing population movement, urbanization, and increasing trade. Furthermore, because of their ecology and dependence on climate, there is a strong likelihood that global warming may significantly increase the potential for disease emergence and/or spread.
Showing items related by title, author, creator and subject.
Widespread transmission of distinct genetic lineages of Murray Valley encephalitis virus in Australia, 2008-2009Williams, David; Diviney, Sinead; Niazi, A.; Herring, B.; Johansen, C.; MacKenzie, John (2011)Murray valley encephalitis virus (MVEV) is the most important cause of arboviral neurological disease in humans in Australia. Increased activity of MVEV was observed in Australia in 2008 and 2009, leading to fatal human ...
Widespread transmission of distinct genetic lineages of Murray Valley encephalitis virus in Australia, 2008-2009Williams, David; Diviney, Sinead; Niazi, A.; Herring, B.; Johansen, C.; MacKenzie, John (2011)Increased activity of the mosquito-borne Murray valley encephalitis virus (MVEV) was observed in Australia in 2008 and 2009, leading to fatal human and equine cases, and renewed concerns regarding its potential to spread ...
Modelling the co-occurence of Streptococcus pneumoniae with other bacterial and viral pathogens in the upper respiratory tractJacoby, P.; Watson, K.; Bowman, J.; Taylor, A.; Riley, T.; Smith, D.; Lehmann, Deborah (2007)Go to ScienceDirect® Home Skip Main Navigation Links Brought to you by: The University of Western Australia Library Login: + Register Athens/Institution Login Not Registered? - User Name: Password: ...