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Analysis of spatial mobility in subjects from a dengue endemic urban locality in Morelos State, Mexico


Reference:

Falcón-Lezama, J. A., Santos-Luna, R., Román-Pérez, S., Martínez-Vega, R. A., Herrera-Valdez, M. A., Kuri-Morales, Á. F., Adams, B., Kuri-Morales, P. A., López-Cervantes, M. and Ramos-Castañeda, J., 2017. Analysis of spatial mobility in subjects from a dengue endemic urban locality in Morelos State, Mexico. PLoS ONE, 12 (2), e0172313.

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http://dx.doi.org/10.1371/journal.pone.0172313

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Abstract

Introduction Mathematical models and field data suggest that human mobility is an important driver for Dengue virus transmission. Nonetheless little is known on this matter due the lack of instruments for precise mobility quantification and study design difficulties. Materials and methods We carried out a cohort-nested, case-control study with 126 individuals (42 cases, 42 intradomestic controls and 42 population controls) with the goal of describing human mobility patterns of recently Dengue virus-infected subjects, and comparing them with those of noninfected subjects living in an urban endemic locality. Mobility was quantified using a GPSdata logger registering waypoints at 60-second intervals for a minimum of 15 natural days. Results Although absolute displacement was highly biased towards the intradomestic and peridomestic areas, occasional displacements exceeding a 100-Km radius from the center of the studied locality were recorded for all three study groups and individual displacements were recorded traveling across six states from central Mexico. Additionally, cases had a larger number of visits out of the municipality?s administrative limits when compared to intradomestic controls (cases: 10.4 versus intradomestic controls: 2.9, p = 0.0282). We were able to identify extradomestic places within and out of the locality that were independently visited by apparently non-related infected subjects, consistent with houses, working and leisure places. Conclusions Results of this study show that human mobility in a small urban setting exceeded that considered by local health authority's administrative limits, and was different between recently infected and non-infected subjects living in the same household. These observations provide important insights about the role that human mobility may have in Dengue virus transmission and persistence across endemic geographic areas that need to be taken into account when planning preventive and control measures. Finally, these results are a valuable reference when setting the parameters for future mathematical modeling studies.

Details

Item Type Articles
CreatorsFalcón-Lezama, J. A., Santos-Luna, R., Román-Pérez, S., Martínez-Vega, R. A., Herrera-Valdez, M. A., Kuri-Morales, Á. F., Adams, B., Kuri-Morales, P. A., López-Cervantes, M. and Ramos-Castañeda, J.
DOI10.1371/journal.pone.0172313
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URLURL Type
http://www.scopus.com/inward/record.url?scp=85013793886&partnerID=8YFLogxKUNSPECIFIED
http://dx.doi.org/10.1371/journal.pone.0172313Free Full-text
Uncontrolled Keywordsmedicine(all),biochemistry, genetics and molecular biology(all),agricultural and biological sciences(all)
DepartmentsFaculty of Science > Mathematical Sciences
Research CentresCentre for Mathematical Biology
EPSRC Centre for Doctoral Training in Statistical Mathematics (SAMBa)
RefereedYes
StatusPublished
ID Code54886

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