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Biomédica

Print version ISSN 0120-4157

Abstract

PADILLA, Julio César et al. Transmission scenarios of major vector-borne diseases in Colombia, 1990-2016. Biomédica [online]. 2017, vol.37, suppl.2, pp.27-40. ISSN 0120-4157.  http://dx.doi.org/10.7705/biomedica.v34i2.3769.

Introduction:

Vector-borne diseases account for more than 17% of all infectious diseases and annually they cause one million deaths worldwide. In Colombia, malaria, dengue, Chagas disease, and leishmaniasis are persistent endemo-epidemic events.

Objective:

To determine the behavior and transmission scenarios of vector-borne diseases in Colombia between 1990 and 2016.

Materials and methods:

We conducted a descriptive study on the epidemiological behavior of the main vector-borne diseases in Colombia between 1990 and 2016 based on information from official secondary sources.

Results:

During the study period, there were 5,360,144 cases of vector-borne diseases, 54.7% of which were due to malaria and 24.9% to dengue, accounting for 80% of the cumulative disease burden of vector-borne disease cases. The median incidence rates were 1,371 and 188 per 100,000 inhabitants for malaria and dengue, respectively. In addition, emerging events such as Chikungunya registered 774,831 cases since its introduction in 2014, while 117,674 Zika fever cases were reported since its emergence in 2015. In rural settings, parasitic vector-borne diseases such as malaria, leishmaniasis and Chagas disease predominated, while in urban scenarios dengue, chikungunya and Zika were predominant.

Conclusions:

Persistent epidemic and endemic transmission of vector-borne diseases in urban and rural settings in Colombia was observed mainly in the case of malaria, dengue, leishmaniasis and Chagas disease. Such transmission was focused and had variable intensity patterns. On the other hand, the conditions that have favored the emergence of new arboviruses persist.

Keywords : Diseases vectors; epidemiologic studies; epidemiologic factors; Colombia.

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