Socio-demographic, ecological factors and dengue infection trends in Australia

Abstract

Dengue has been a major public health concern in Australia. This study has explored the spatio-temporal trends of dengue and potential socio- demographic and ecological determinants in Australia. Data on dengue cases, socio-demographic, climatic and land use types for the period January 1999 to December 2010 were collected from Australian National Notifiable Diseases Surveillance System, Australian Bureau of Statistics, Australian Bureau of Meteorology, and Australian Bureau of Agricultural and Resource Economics and Sciences, respectively. Descriptive and linear regression analyses were performed to observe the spatio-temporal trends of dengue, socio-demographic and ecological factors in Australia. A total of 5,853 dengue cases (both local and overseas acquired) were recorded across Australia between January 1999 and December 2010. Most the cases (53.0%) were reported from Queensland, followed by New South Wales (16.5%). Dengue outbreak was highest (54.2%) during 2008–2010. A highest percentage of overseas arrivals (29.9%), households having rainwater tanks (33.9%), Indigenous population (27.2%), separate houses (26.5%), terrace house types (26.9%) and economically advantage people (42.8%) were also observed during 2008–2010. Regression analyses demonstrate that there was an increasing trend of dengue incidence, potential socio-ecological factors such as overseas arrivals, number of households having rainwater tanks, housing types and land use types (e.g. intensive uses and production from dryland agriculture). Spatial variation of socio-demographic factors was also observed in this study. In near future, significant increase of temperature was also projected across Australia. The projected increased temperature as well as increased socio-ecological trend may pose a future threat to the local transmission of dengue in other parts of Australia if Aedes mosquitoes are being established. Therefore, upgraded mosquito and disease surveillance at different ports should be in place to reduce the chance of mosquitoes and dengue cases being imported into all over Australia.

Risk factors spatial-temporal detection for dengue fever in Guangzhou

“…There was a significant positive correlation between the tourists and DF incidence. The situation is similar to that in Australia, where there is an increasing trend in DF incidence as the number of overseas visitors increases [ 49 ]. Residents in Guangdong Province keep close connections with South East Asian countries that are in the DF-endemic regions [ 50 ].…”

Influence of Socio-Economic, Demographic and Climate Factors on the Regional Distribution of Dengue in the United States and Mexico

“…Socio-economic conditions in a given location can be vital for a disease to persist once local transmission has occurred [10][11][12][13][14][15]. While studies have looked at the interaction between climate, socio-economic factors and demographics at a local level [16][17][18][19][20], they only focus on factors specific to local areas and issues arise when trying to extrapolate results from local level studies to macro level studies, since variables or predictors used at a local level may not be comparable across different locations and/or because of a lack of data availability at such scales. To get better estimates of where dengue may spread, there is a need to understand how climate factors, socio-economic factors and demographic factors interact over a greater geographic scale to reveal common global patterns.…”

Environmental and Sociology Factors Associated with Dengue Cases in Kuala Lumpur, Malaysia

“…Based on the result, 91% patient who are infected with dengue lived close to the construction areas. The previous study also proved that land cover types are significant to the dengue spread (Sarfraz et al, 2012;Ling, Leitão, & Lakes, 2014& Akter et al, 2017. For instance, in 2012, the Singapore Health Authorities found 900 aedes mosquitoes breeding on construction sites (Viennet et al, 2016).…”

“…Dengue transmission elements are complex, including virus, vector and host. These parameters (virus, vector and human host) are influenced by many factors such as climatic factors (temperature, rainfall, wind and relative humidity), human movement and behavior, sociological, economic, demographic and ecological factors (Gubler DJ., 2011;Akter, Naish, Hu, & Tong, 2017& Raphael, 2017 Aedes mosquitoes preferred to breed in the artificial containers and natural breeding sources such as concrete tanks, drum, flower pots, discarded tires, plant, animal shells, leaves stalk, tree holes and bamboo stumps (Che et al, 2013;Paupy et.al., 2009& Okogun et.al., 2005.…”