Dengue transmission risk maps of Argentina

Dengue is an emerging disease that has become important in Argentina because of its vector’s presence (Aedes aegypti) and its endemicity in neighbouring countries. Thematic maps were built for Argentina considering four main factors: population susceptibility to dengue virus infection (population de...

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Bibliographic Details
Published in:Tropical medicine & international health 2001-03, Vol.6 (3), p.170-183
Main Authors: Carbajo, Aníbal Eduardo, Schweigmann, Nicolás, Curto, Susana Isabel, De Garín, Alicia, Bejarán, Rubén
Format: Article
Language:English
Subjects:
Aedes aegypti
Animals
Arboviroses
Argentina
Biological and medical sciences
Culicidae - virology
dengue
Dengue - transmission
Dengue fevers
extrinsic incubation period
Human viral diseases
Humans
Infectious diseases
Medical sciences
mosquito
Risk Factors
risk maps
transmission risk
Tropical medicine
Tropical viral diseases
vector
Viral diseases
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Summary:Dengue is an emerging disease that has become important in Argentina because of its vector’s presence (Aedes aegypti) and its endemicity in neighbouring countries. Thematic maps were built for Argentina considering four main factors: population susceptibility to dengue virus infection (population density); entrance of the virus from endemic countries (main roads and airports); conditions for the vector (urbanization, altitude, minimum, maximum and mean daily temperatures) and virus extrinsic incubation period (EIP) completion in the mosquito before its death. EIP duration was modelled with a temperature‐dependent function and considering life expectancies of 10, 15 and 20 days for the adult mosquito. The results show maximum risk of dengue transmission in the northern and north‐eastern part of the country year‐round and in the centre during the summer. Although life expectancy of the adult mosquito has a considerable influence on EIP completion, the north‐east to south‐west decreasing gradient is maintained. Assuming 20‐day life expectancy, the EIP would be completed in almost any region of the country; whereas with 15‐day life expectancy it would be limited to vector distribution area, and at 10 days it would be restricted to the northern extreme of the country.
ISSN:1360-2276
1365-3156
DOI:10.1046/j.1365-3156.2001.00693.x