Scaling patterns of human diseases and population size in Colombia

Alejandro Feged Rivadeneira, Federico Andrade-Rivas, Felipe González- Casabianca, Francisco Javier Escobedo

Research output: Contribution to journalArticlepeer-review

Abstract

Colombia has had one of the largest numbers of internally displaced populations in the world and in 2016 entered a period of post-conflict. These socio-ecological and geopolitical processes and trends have increased the migration of people towards cities and accordingly are affecting the distribution and occurrence of tropical diseases in its urban and peri-urban areas. Studies have suggested that anthropogenic phenomena such as ur-banization scale according to the size of human populations regardless of cultural context. But, other studies show that health epidemics such as malarial and human mmunodeficiency virus infections, follow a scale-free distribution in terms of urban population size and density. Here, we explore these relationships and dynamics in a tropical context using statistical analyses and available geospatial data to identify the scale relationships be-tween urban growth processes and disease transmission in Colombia. Our results show that the dynamics of rural
populations and certain diseases were characterized by power-laws that are indeed observed in urbanization studies. However, as opposed to these other studies, we found that malaria presented a higher intensity of infection in human settlements with less than 50,000 individuals and in particular for ethnic, indigenous pop-ulations. Results indicate that disease and urbanization relationships in Colombia do indeed follow scales; findings that differ from previous epidemiological studies such as those for malarial infection. Additionally, we identified trends showing that malarial infections become endemic in peri-urban areas. This approach using few, but robust and readily available, data is key for managing public health issues and understanding the spatial distribution of environmental impacts in the urbanizing tropics.
Translated title of the contributionPatrones de escala de las enfermedades humanas y el tamaño de la población en Colombia
Original languageEnglish
Pages (from-to)1-12
JournalGlobal Environmental Change
Volume75
Issue number102546
DOIs
StatePublished - 2022

Author Keywords

  • Concept
  • Spatial analyses
  • Epidemiology
  • Power laws
  • Tropical cities
  • Environmental impacts
  • Malaria

Fingerprint

Dive into the research topics of 'Scaling patterns of human diseases and population size in Colombia'. Together they form a unique fingerprint.

Cite this