Abstract
Recent El Niño events have stimulated interest in the development of modeling techniques to forecast extremes of climate and related health events. Previous studies have documented associations between specific climate variables (particularly temperature and rainfall) and outbreaks of arboviral disease. In some countries, such diseases are sensitive to El Niño. Here we describe a climate-based model for the prediction of Ross River virus epidemics in Australia. From a literature search and data on case notifications, we determined in which years there were epidemics of Ross River virus in southern Australia between 1928 and 1998. Predictor variables were monthly Southern Oscillation index values for the year of an epidemic or lagged by 1 year. We found that in southeastern states, epidemic years were well predicted by monthly Southern Oscillation index values in January and September in the previous year. The model forecasts that there is a high probability of epidemic Ross River virus in the southern states of Australia in 1999. We conclude that epidemics of arboviral disease can, at least in principle, be predicted on the basis of climate relationships.
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- Bouma M. J., Dye C. Cycles of malaria associated with El Niño in Venezuela. JAMA. 1997 Dec 3;278(21):1772–1774. [PubMed] [Google Scholar]
- Bouma M. J., van der Kaay H. J. The El Niño Southern Oscillation and the historic malaria epidemics on the Indian subcontinent and Sri Lanka: an early warning system for future epidemics? Trop Med Int Health. 1996 Feb;1(1):86–96. doi: 10.1046/j.1365-3156.1996.d01-7.x. [DOI] [PubMed] [Google Scholar]
- Dhileepan K. Mosquito seasonality and arboviral disease incidence in Murray Valley, southeast Australia. Med Vet Entomol. 1996 Oct;10(4):375–384. doi: 10.1111/j.1365-2915.1996.tb00760.x. [DOI] [PubMed] [Google Scholar]
- Gubler D. J., Clark G. G. Dengue/dengue hemorrhagic fever: the emergence of a global health problem. Emerg Infect Dis. 1995 Apr-Jun;1(2):55–57. doi: 10.3201/eid0102.952004. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hales S., Weinstein P., Souares Y., Woodward A. El Niño and the dynamics of vectorborne disease transmission. Environ Health Perspect. 1999 Feb;107(2):99–102. doi: 10.1289/ehp.9910799. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hales S., Weinstein P., Woodward A. Dengue fever epidemics in the South Pacific: driven by El Niño Southern Oscillation? Lancet. 1996 Dec 14;348(9042):1664–1665. doi: 10.1016/S0140-6736(05)65737-6. [DOI] [PubMed] [Google Scholar]
- Kuno G. Review of the factors modulating dengue transmission. Epidemiol Rev. 1995;17(2):321–335. doi: 10.1093/oxfordjournals.epirev.a036196. [DOI] [PubMed] [Google Scholar]
- Lindsay M., Oliveira N., Jasinska E., Johansen C., Harrington S., Wright A. E., Smith D. An outbreak of Ross River virus disease in Southwestern Australia. Emerg Infect Dis. 1996 Apr-Jun;2(2):117–120. doi: 10.3201/eid0202.960206. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mackenzie J. S., Lindsay M. D., Coelen R. J., Broom A. K., Hall R. A., Smith D. W. Arboviruses causing human disease in the Australasian zoogeographic region. Arch Virol. 1994;136(3-4):447–467. doi: 10.1007/BF01321074. [DOI] [PubMed] [Google Scholar]
- Nicholls N. A method for predicting Murray Valley encephalitis in southeast Australia using the Southern Oscillation. Aust J Exp Biol Med Sci. 1986 Dec;64(Pt 6):587–594. doi: 10.1038/icb.1986.62. [DOI] [PubMed] [Google Scholar]
- Nicholls N. El niño-southern oscillation and vector-borne disease. Lancet. 1993 Nov 20;342(8882):1284–1285. doi: 10.1016/0140-6736(93)92368-4. [DOI] [PubMed] [Google Scholar]
- Russell R. C. Vectors vs. humans in Australia--who is on top down under? An update on vector-borne disease and research on vectors in Australia. J Vector Ecol. 1998 Jun;23(1):1–46. [PubMed] [Google Scholar]
- Weinstein P. An ecological approach to public health intervention: Ross River virus in Australia. Environ Health Perspect. 1997 Apr;105(4):364–366. doi: 10.1289/ehp.97105364. [DOI] [PMC free article] [PubMed] [Google Scholar]

