Publications by Vitor Pessoa Colombo

Environmental and socio-economic determinants of fecal sludge emptying in Sub-Saharan Africa: A cross-sectional mixed-methods study in Abidjan, Côte d’Ivoire

This study sought to understand the determinants of household’s choices for fecal sludge (FS) emptying to help fighting against unhygienic/unsafe practices and environmental pollution. A cross-sectional mixed study used in the municipality of Yopougon (Abi ...

2024

Transitional Infrastructures Extending Access to Safe Water in Informal Settlements: A Cross-Sectional Study in Nairobi, Kenya

Jérôme Chenal, Vitor Pessoa Colombo, Jürg Utzinger

There is a pressing need for transitional water infrastructures in rapidly growing cities where conventional infrastructures lag behind human settlement expansion. In Kenya, sectoral innovations have addressed local socioeconomic challenges, but empirical ...

2024

Urban Growth and Land Artificialization in Secondary African Cities: A Spatiotemporal Analysis of Ho (Ghana) and Kpalimé (Togo)

Jérôme Chenal, Vitor Pessoa Colombo

Artificialization in Secondary African Cities: A Spatiotemporal Analysis of Ho (Ghana) and Kpalimé (Togo). While many studies have used Earth observations to quantify urbanization in Africa, there is still a lack of empirical evidence on the role of secon ...

2024

Household surveys in four informal settlements in Abidjan (Côte d'Ivoire) and Nairobi (Kenya)

Vitor Pessoa Colombo

Description: Latest release of data (anonymized) collected in informal settlements in Côte d'Ivoire and Kenya during my PhD thesis, with the respective metadata (questionnaire files). Please note that some data (geolocation, specific age of participant, an ...

Zenodo2024

Environmental determinants of access to shared sanitation in informal settlements: a cross-sectional study in Abidjan and Nairobi

Jérôme Chenal, Vitor Pessoa Colombo, Jürg Utzinger

Background Universal access to basic sanitation remains a global challenge, particularly in low- and middle-income countries. Efforts are underway to improve access to sanitation in informal settlements, often through shared facilities. However, access to ...

2023

Spatial Distributions of Diarrheal Cases in Relation to Housing Conditions in Informal Settlements: A Cross-Sectional Study in Abidjan, Côte d’Ivoire

Jérôme Chenal, Vitor Pessoa Colombo, Jürg Utzinger

In addition to individual practices and access to water, sanitation, and hygiene (WASH) facilities, housing conditions may also be associated with the risk of diarrhea. Our study embraced a broad approach to health determinants by looking at housing depriv ...

2023

Relating health benefits of water, sanitation, and hygiene services with the context of urban informal settlements: lessons from Côte d'Ivoire and Kenya

Vitor Pessoa Colombo

This thesis is inscribed in the recent efforts to reconnect urban planning and public health. It focused on the context of sub-Saharan African cities, for they offer invaluable lessons regarding environmental health determinants and potential solutions to ...

EPFL2023

Comparing Volunteered Data Acquisition Methods on Informal Settlements in Mexico City and São Paulo: A Citizen Participation Ladder for VGI

Vitor Pessoa Colombo

In the early 2000s, Web 2.0 technologies prompted an explosion in geographic data that include Volunteered Geographic Information (VGI), a set of methods that brings user contribution to the center of data acquisition. These methods increase the capacity o ...

Springer2023

Examining African contributions to global health: Reflections on knowledge circulation and innovation

Jérôme Chenal, Vitor Pessoa Colombo, Julia Tischler, Akuto Akpedze Konou, Jürg Utzinger

This article unites different disciplinary debates on ‘southern innovation’, ‘theory from the South’, and ‘decolonisation of knowledge’ in order to discuss existing understandings around the role of Africa in the production of health-related knowledge, pub ...

2022

Using Open-Access Data to Explore Relations between Urban Landscapes and Diarrhoeal Diseases in Côte d’Ivoire

Jérôme Chenal, Vitor Pessoa Colombo, Martí Bosch Padrós, Jürg Utzinger

Unlike water and sanitation infrastructures or socio-economic indicators, landscape features are seldomly considered as predictors of diarrhoea. In contexts of rapid urbanisation and changes in the physical environment, urban planners and public health man ...

2022

Automatic detection of potential mosquito breeding sites from aerial images acquired by unmanned aerial vehicles

Vitor Pessoa Colombo

The World Health Organization (WHO) has stated that effective vector control measures are critical to achieving and sustaining reduction of vector-borne infectious disease incidence. Unmanned aerial vehicles (UAVs), popularly known as drones, can be an imp ...

2021

Gentrification, Coprésence ou Mixité? Changements et Permanences au Centre de São Paulo

Vitor Pessoa Colombo, Gian Paolo Torricelli

Peut-on parler de gentrification dans le centre de Sao Paulo (Brésil) ? Ou, plutôt, de coprésence de différentes classes sociales ? En partant d’une brève analyse du contexte latino-américain et de la situation des centres urbains dans cette région, nous a ...

Association Espaces Temps2020

Gentrification, Coprésence ou Mixité? Changements et Permanences au Centre de São Paulo

Jérôme Chenal, Vitor Pessoa Colombo, Gian Paolo Torricelli

Peut-on parler de gentrification dans le centre de Sao Paulo (Brésil)? Ou devons-nous plutôt observer une situation de coprésence durable de différentes populations? Sur la base d'une analyse du contexte latino-américain et de la situation des centres métr ...

2019