Urbanization, land tenure security and vector-borne Chagas disease.
Proc Biol Sci
; 281(1789): 20141003, 2014 Aug 22.
Article
en En
| MEDLINE
| ID: mdl-24990681
Modern cities represent one of the fastest growing ecosystems on the planet. Urbanization occurs in stages; each stage characterized by a distinct habitat that may be more or less susceptible to the establishment of disease vector populations and the transmission of vector-borne pathogens. We performed longitudinal entomological and epidemiological surveys in households along a 1900 × 125 m transect of Arequipa, Peru, a major city of nearly one million inhabitants, in which the transmission of Trypanosoma cruzi, the aetiological agent of Chagas disease, by the insect vector Triatoma infestans, is an ongoing problem. The transect spans a cline of urban development from established communities to land invasions. We find that the vector is tracking the development of the city, and the parasite, in turn, is tracking the dispersal of the vector. New urbanizations are free of vector infestation for decades. T. cruzi transmission is very recent and concentrated in more established communities. The increase in land tenure security during the course of urbanization, if not accompanied by reasonable and enforceable zoning codes, initiates an influx of construction materials, people and animals that creates fertile conditions for epidemics of some vector-borne diseases.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Factores Socioeconómicos
/
Enfermedad de Chagas
/
Insectos Vectores
Tipo de estudio:
Observational_studies
/
Risk_factors_studies
Aspecto:
Determinantes_sociais_saude
Límite:
Animals
/
Humans
País/Región como asunto:
America do sul
/
Peru
Idioma:
En
Revista:
Proc Biol Sci
Asunto de la revista:
BIOLOGIA
Año:
2014
Tipo del documento:
Article
País de afiliación:
Perú
Pais de publicación:
Reino Unido