Assessing the threat of Chikungunya virus emergence in Australia
Autor(es): Viennet Elvina, Knope Katrina, Faddy Helen M, Williams Craig R, Harley David
Resumo: Chikungunya virus (CHIKV) is a major threat to Australia given the distribution of competent vectors, - the large number of travellers returning from endemic regions. We describe current knowledge of CHIKV importations into Australia, - quantify reported viraemic cases, with the aim of facilitating the formulation of public health policy - ensuring maintenance of blood safety. Cases reported to the National Notifiable Disease Surveillance System (NNDSS) from 2002 to 2012 were analysed by place, month of acquisition, - place of residence. Rates of chikungunya importation were estimated based on reported cases - on the numbers of short-term movements. Between 2002 - 2012, there were 168 cases of chikungunya virus (CHIKV) imported into Australia. Victoria - New South Wales had the largest number of notifications. The main sources were Indonesia, India - Malaysia. The number of cases increased from 2008 to reach a peak in 2010 (n=64; 40%). Although Indonesia accounted for the majority of CHIKV notifications in Australia, travel from India had the highest CHIKV importation rate (number of imported cases per 100,000 travellers). The Australian population is increasingly at risk from CHIKV. Arrivals from endemic countries have increased concurrently with vector incursions via imported goods, as well as via local movement from the Torres Strait to North Queensl- ports. An outbreak of CHIKV could have a significant impact on health, the safety of the blood suply - on tourism. Case - vector surveillance as well as population health responses are crucial for minimising any potential impact of CHIKV establishment in Australia.
Palavras-Chave: Chikungunya; Importation; Risk; Travellers; Australia; Vectors; Viraemic cases
Imprenta: Communicable Diseases Intelligence, v. 37, n. 2, p. E136-E143, 2013
Descritores: Chikungunya virus - Pathogenesis ; Chikungunya virus - Inflammation ; Chikungunya virus - Viral infections ; Chikungunya Virus - Virus ; Chikungunya virus - Chikungunya fever ; Chikungunya virus - Epidemiology ; Chikungunya virus - Public health
Data de publicação: 2013
