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Active, Not Recruiting

NCT Number: NCT06599970

Improving Disease Prevention Strategies by Integrating Socio-spatial Characterization of Human Mobility

In contrast to the trend expected based on existing prediction models, dengue incidence was historically low during the pandemic mobility restrictions of 2020-2021 in most dengue endemic countries. This highlights that current transmission models do not correctly take human mobility into account. Within a pilot-study in Cienfuegos, South-Central Cuba, we will characterise the epidemiological spread and distribution of dengue outbreaks (2012-2025) in districts repeatedly involved in previous dengue outbreaks as initiating, case-concentrating or transmission sustaining areas. This will be linked with fine-grained mobility data and socio-spatial characterizations of commuting flows and population hubs where people are concentrated during day-time (time when transmission happens). This information, together with entomological and environmental risk-data, will be used to i) improve the accuracy of mathematical dengue models, ii) better understand the transmission process and iii) inform and improve the design of disease control strategies. The project will contribute to much-needed evidence-based guidance for public health actors on improved prevention strategies of epidemics dispersion and where and when to implement control measures.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

Key information

Age range

19 year–75 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Instituto de Medicina Tropical Pedro Kouri

Havana, La Habana, Cuba

About this study

Using epidemiological data and human mobility data, integrated with other multiple-sourced data, this study examines the interplay between disease spread and intra-city mobility (within a city).

The study is ambi-spective, using retro- and prospective routine surveillance data (2012-2025) on dengue cases and Aedes entomological data, to describe the fine-scale spatio-temporal characterization of dengue transmission in Cienfuegos municipality.

To characterise human mobility within the municipality of Cienfuegos, information related to recurrent and seasonal movements will be collected. Several types of data will be triangulated to obtain a comprehensive understanding of the population's mobility (matrix of human mobility). In this way, six prospective data collection activities are planned:

  • Mobility survey: The conduct of a mobility survey with adults. The purpose of this survey is to gather prospective information regarding recurrent mobility, and retrospective information about seasonal mobility. Study subjects include adults, elderly, and indirectly, young children through the specific inclusion of young mothers.
  • Student survey: Questionnaire about mobility of a sample of students in pre-university and university on recurrent and seasonal mobility.
  • School registers: Consultation of school registers to capture information on school-related recurrent mobility of children of school-going age.
  • Vacation stories: Within a two-weeks time after the holidays, teachers are always doing a 'vacation story exercise' within their class. We will ask the teachers of selected classes in the sentinel schools to group this information on the number of children travelling outside the Cienfuegos municipality during holidays (seasonal mobility).
  • Workplace register: Consultation of workplace registers to capture information on work-related recurrent mobility of adults.
  • Call Detail Records: Anonymized and grouped information about house-work/school locations of cell phone users obtained from cell phone company (recurrent movement).

In a third step, the above information will be brought into a mathematical model, explaining mobility within transmission dynamics, which will be validated in a prospective way allowing to identify shortcomings and adjust the model where needed.

In a last step, the various types of collected data will be assembled and discussed together for the elaboration of potential dengue (and integrated) control strategies and presented for validation with local stakeholders.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

For the prospective data collection - mobility survey:

Inclusion criteria

  • Being a resident of the sentinel Popular Council/consultorio
  • Being >= 19 years of age
  • Being willing and able to provide written informed consent

Exclusion criteria

  • being below 19 or above 75 years old

Treatment and study plan

No intervention

Other

This is an observational study. No experimental interventions included. The mobility of people will be studied.

Primary outcomes

  1. dengue incidence

    Time frame: 2012-2025

    multilevel spatio-temporal characterization of dengue transmission dynamics, focussing on transmission propagation heterogeneity in time and space

  2. human mobility

    Time frame: 2024-2026

    origen-destination matrices will be built, based on information collected in mobility survey, school and workplace registries, vacation stories, phone data, student survey and in-depth interviews

Secondary outcomes

  1. entomological risks for dengue transmission

    Time frame: 2012-2025

    entomological indicators (monthly data collection of immature stages 2012-2025; monthly surveys of adult stages Aedes mosquitoes 2024-2025)

  2. climate

    Time frame: 2012-2026

    temperature (° degrees celsius, daily minimum, daily maximum, weekly average) and rainfall (mm/day)

  3. Mathematical transmission model

    Time frame: 2024-2026

    Stochastic mobility-driven spatially explicit DENV model based on the two primary outcomes of this study

  4. socio-spatial characterisation of public spaces

    Time frame: 2024-2026

    hourly population densities (number of persons present for more than 5 minutes present) in different rooms/areas of densely frequented public spaces (schools, markets, factories)

Sponsors and collaborators

Lead sponsor

Institute of Tropical Medicine, Belgium

Other

Collaborators

  • Cienfuegos Provincial Ministry of Health, Cuba
  • Institute Pedro Kouri, Ministry of Public Health (Cuba)
  • University Ghent

Registry information

Official study title

Improving Disease Prevention Strategies of Epidemic Spread by Integrating Socio-spatial Characterization of Human Mobility, Environmental Typology and Mathematical Modelling in an Urban System of Cuba

Acronym: DI-MOB

Important dates

Study start
2024
Primary completion
2026
Study completion
2027
First posted
Sep 19, 2024
Registry last updated
Apr 22, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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