1921
Volume 80, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

Vectorial transmission of Chagas disease has been decreasing over the past few decades because of effective vector control programs in the southern cone of South America. However, the disease is still actively transmitted within the Gran Chaco region. In this area, vector populations are abundant and highly prevalent in poor rural houses. This study analyses the spatial pattern of rural house infestation by in a 56,000 km area in the province of La Rioja, Argentina, before the re-initiation of systematic activity on vector control intervention. Data on 5,045 rural houses show that infestation has high spatial heterogeneity, with highly infested localities concentrated in a few areas. House infestation has a negative significant relationship with locality size. Rural houses in the region are highly dispersed and this feature has been and will remain a challenge for any vigilance system to be installed in the region.

Loading

Article metrics loading...

/content/journals/10.4269/ajtmh.2009.80.405
2009-03-01
2017-09-21
Loading full text...

Full text loading...

/deliver/fulltext/14761645/80/3/0800405.html?itemId=/content/journals/10.4269/ajtmh.2009.80.405&mimeType=html&fmt=ahah

References

  1. Gürtler RE, Kitron U, Cecere MC, Segura EL, Cohen JE, 2007. Sustainable vector control and management of Chagas disease in the Gran Chaco, Argentina. Proc Natl Acad Sci USA 104 : 16194–16199.
  2. INDEC, 2001. Instituto Nacional de Estadísticas y Censo. Censo Nacional de Población, Hogares y Vivienda del Año 2001. Available at: http://www.indec.gov.ar/webcenso/index.asp.
  3. Soler C, 1958. Campaña piloto de erradicación de la vinchuca. Villa Mazán 1958. Segura 2002. La Rioja, Argentina: Subsecretaría de Salud Pública de La Rioja.
  4. Sosa Estani S, Zaidemberg M, Segura EL, 2006. Descentralización del Pr ograma de Control de la Transmisión de Trypanosoma cruzi (Chagas) en la Argentina. Yadon Z, Gurtler RE, Tobar F, Médici AC. Descentralización y Gestión del Control de las Enfermedades Transmisibles en América Latina. OPS, 189–202.
  5. Segura EL, 2002. El control de la enfermedad de Chagas en la República Argentina. El control de la enfermedad de Chagas en los países del Cono Sur de América: Historia de una Iniciativa Internacional. 1991/2001, 45–108.
  6. Gürtler RE, Canale DM, Spillmann C, Stariolo R, Salomón OD, Blanco S, Segura EL, 2004. Effectiveness of residual spraying of peri-domestic ecotopes with deltamethrin and permethrin on Triatoma infestans in rural western Argentina: a district-wide randomized trial. Bull World Health Organ 82 : 196–205.
  7. Kulldorff, M. A. 1997. Spatial scan statistic. Commun Stat-Theor M 26: 1481–1496.
  8. World Health Organization. 2002. Control of Chagas disease. Second report of the WHO expert committee. World Health Organ Tech Rep Ser 905 : 1–115.
  9. Schofield CJ, Jannin J, Salvatella R, 2006. The future of Chagas disease control. Trends Parasitol 22 : 583–588.
  10. Porcasi X, Catalá SS, Hrellac H, Scavuzzo MC, Gorla DE, 2006. Infestation of rural houses by Triatoma infestans (Hemipera: Reduviidae) in the southern area of the Gran Chaco in Argentina. J Med Entomol 43 : 1060–1067.
http://instance.metastore.ingenta.com/content/journals/10.4269/ajtmh.2009.80.405
Loading
/content/journals/10.4269/ajtmh.2009.80.405
Loading

Data & Media loading...

  • Received : 27 May 2008
  • Accepted : 26 Nov 2008

Most Cited This Month

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error