Analytical report of the 2016 dengue outbreak in Córdoba city, Argentina

Geospat Health. 2017 Nov 6;12(2):564. doi: 10.4081/gh.2017.564.

Abstract

After elimination of the Aedes aegypti vector in South America in the 1960s, dengue outbreaks started to reoccur during the 1990s; strongly in Argentina since 1998. In 2016, Córdoba City had the largest dengue outbreak in its history. In this article we report this outbreak including spatio-temporal analysis of cases and vectors in the city. A total of 653 dengue cases were recorded by the laboratory-based dengue surveillance system and georeferenced by their residential addresses. Case maps were generated from the epidemiological week 1 (beginning of January) to week 19 (mid-May). Dengue outbreak temporal evolution was analysed globally and three specific, high-incidence zones were detected using Knox analysis to characterising its spatio-temporal attributes. Field and remotely sensed data were collected and analysed in real time and a vector presence map based on the MaxEnt approach was generated to define hotspots, towards which the pesticide- based strategy was then targeted. The recorded pattern of cases evolution within the community suggests that dengue control measures should be improved.

Keywords: Argentina; Córdoba; Dengue outbreak; Operational tools; Remote sensing.

MeSH terms

  • Aedes / growth & development*
  • Animals
  • Argentina / epidemiology
  • Dengue / epidemiology*
  • Humans
  • Incidence
  • Insect Vectors / growth & development*
  • Rain
  • Spatio-Temporal Analysis
  • Time Factors