In 2023, through the end of August, 130,116 dengue fever cases were registered in Argentina, of which 121,528 are locally transmitted, 1,500 are travel associated and 7,088 are under investigation.
In 2023, cases increased from EW 7 and 8 until EW 16, from which the decrease in cases began at a rate similar to that of the increase, until EW 17 and 18. From then on the decline continued at a slower pace and, since EW 30, confirmed cases were recorded sporadic in different locations. In the last four weeks 63 indigenous cases were confirmed.
Jurisdictions that registered confirmed indigenous cases or cases under investigation in the last four weeks are: Chaco (San Fernando, Sergeant Cabral, 1st of Mayo, General Güemes, Liberator General San Martín, Maipú), Misiones (Capital), Santa Fe (General Obligado), Santiago del Estero (Capital) and Jujuy (Santa Bárbara).
In the last EW, two cases of dengue were reported: one in Chaco (San Fernando) with no travel history, and another in Santa Fe, in the department of Vera, but with a travel history to General Obligado, also in the department.
To date, the predominant circulation of the DENV-2 serotype has been recorded in the country. identified in 79.60% of serotyped cases; followed by DENV-1 (20.36%) and DENV-3 (0.05%).
At the regional level, DENV-2 predominates in the Argentine Northwest (NOA) and Central regions, and DENV-1 in the region Northeastern Argentina (NEA), except for Formosa, where a higher proportion of DENV-2 was recorded.
The cumulative incidence at the national level until EW 35 it was 279.32 cases each 100,000 inhabitants, with values that exceed 300 in the population from 15 to 65 years old, and less affected in children under 10 years and adults over 65 years.
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