Public health response Health authorities in Argentina are taking the following measures: enhancing epidemiological surveillance, including syndromic surveillance and surveillance of severe cases as well as disseminating diagnostic and notification algorithms for dengue, chikungunya and Zika; conducting vector control activities in the affected areas; communicating with health professionals and the public. WHO risk assessment This is the first time that autochthonous transmission of chikungunya is reported in Argentina. The affected area is situated next to the border with Bolivia where the virus has been known to circulate for a number of years. In Argentina, there is the potential of geographical extension to other areas where the vector Aedes is present. Furthermore, there is also possibility of extension to other countries in the region of the Americas where the competent vectors are also present. WHO continues to monitor the epidemiological situation and conduct risk assessment based on the latest available information. WHO advice The proximity of mosquito vector breeding sites to human habitation is a significant risk factor for dengue virus infection. Prevention and control relies on reducing the breeding of mosquitoes through source reduction (removal and modification of breeding sites) and reducing contact between mosquitoes and people. This can be achieved by reducing the number of natural and artificial water-filled habitats that support mosquito larvae, reducing the adult mosquito populations around at-risk communities and by using barriers such as insect screens, closed doors and windows, long clothing and repellents. Since the Aedes mosquitoes (the primary vector for transmission) are day-biting mosquitoes, it is recommended that those who sleep during the daytime, particularly young children, the sick or elderly, should rest under mosquito nets (bed nets), treated with or without insecticide to provide protection.
Source: WHO | Chikungunya – Argentina










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