1921
Volume 79, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

We used sentinel animal enclosures to measure the rate of infestation by the Chagas disease vector, , in an urban community of Arequipa, Peru, and to evaluate the effect of deltamethrin-impregnated netting on that rate. Impregnated netting decreased the rate of infestation of sentinel enclosures (rate ratio, 0.23; 95% confidence interval, 0.13–0.38; < 0.001), controlling for the density of surrounding vector populations and the distance of these to the sentinel enclosures. Most migrant insects were early-stage nymphs, which are less likely to carry the parasitic agent of Chagas disease, . Spread of the vector in the city therefore likely precedes spread of the parasite. Netting was particularly effective against adult insects and late-stage nymphs; taking into account population structure, netting decreased the reproductive value of migrant populations from 443.6 to 40.5. Impregnated netting can slow the spread of and is a potentially valuable tool in the control of Chagas disease.

Loading

Article metrics loading...

The graphs shown below represent data from March 2017
/content/journals/10.4269/ajtmh.2008.79.528
2008-10-01
2018-12-19
Loading full text...

Full text loading...

/deliver/fulltext/14761645/79/4/0790528.html?itemId=/content/journals/10.4269/ajtmh.2008.79.528&mimeType=html&fmt=ahah

References

  1. Dias JC, Silveira AC, Schofield CJ, 2002. The impact of Chagas disease control in Latin America: a review. Mem Inst Oswaldo Cruz 97 : 603–612. [Google Scholar]
  2. Kirchhoff LV, 1996. American trypanosomiasis (Chagas’ disease). Gastroenterol Clin North Am 25 : 517–533. [Google Scholar]
  3. Tarleton RL, Reithinger R, Urbina JA, Kitron U, Gurtler RE, 2007. The challenges of Chagas Disease—grim outlook or glimmer of hope. PLoS Med 4 : e332. [Google Scholar]
  4. Cohen JE, Gurtler RE, 2001. Modeling household transmission of American trypanosomiasis. Science 293 : 694–698. [Google Scholar]
  5. Zeledon R, Rabinovich JE, 1981. Chagas’ disease: an ecological appraisal with special emphasis on its insect vectors. Annu Rev Entomol 26 : 101–133. [Google Scholar]
  6. Levy MZ, Bowman NM, Kawai V, Waller LA, Cornejo del Car-pio JG, Cordova Benzaquen E, Gilman RH, Bern C, 2006. Periurban Trypanosoma cruzi-infected Triatoma infestans, Arequipa, Peru. Emerg Infect Dis 12 : 1345–1352. [Google Scholar]
  7. Levy MZ, Kawai V, Bowman NM, Waller LA, Cabrera L, Pinedo-Cancino VV, Seitz AE, Steurer FJ, Cornejo Del Car-pio JG, Cordova-Benzaquen E, Maguire JH, Gilman RH, Bern C, 2007. Targeted screening strategies to detect Trypa-nosoma cruzi infection in children. PLoS Negl Trop Dis 1 : e103. [Google Scholar]
  8. Bowman NM, Kawai V, Levy MZ, Cornejo del Carpio JG, Ca-brera L, Delgado F, Malaga F, Cordova Benzaquen E, Pinedo VV, Steurer F, Seitz AE, Gilman RH, Bern C, 2008. Chagas disease transmission in periurban communities of Arequipa, Peru. Clin Infect Dis 46 : 1822–1828. [Google Scholar]
  9. Lorca M, Garcia A, Contreras MC, Schenone H, Rojas A, 2001. Evaluation of a Triatoma infestans elimination program by the decrease of Trypanosoma cruzi infection frequency in children younger than 10 years, Chile, 1991–1998. Am J Trop Med Hyg 65 : 861–864. [Google Scholar]
  10. Silveira A, Vinhaes M, 1999. Elimination of vector-borne transmission of Chagas disease. Mem Inst Oswaldo Cruz 94 (Suppl 1): 405–411. [Google Scholar]
  11. Cecere MC, Vazquez-Prokopec GM, Gurtler RE, Kitron U, 2004. Spatio-temporal analysis of reinfestation by Triatoma infestans (Hemiptera: Reduviidae) following insecticide spraying in a rural community in northwestern Argentina. Am J Trop Med Hyg 71 : 803–810. [Google Scholar]
  12. Dohna HZ, Cecere MC, Gurtler RE, Kitron U, Cohen JE, 2007. Re-establishment of local populations of vectors of Chagas disease after insecticide spraying. J Appl Ecol 44 : 220–227. [Google Scholar]
  13. Lindblade KA, Eisele TP, Gimnig JE, Alaii JA, Odhiambo F, ter Kuile FO, Hawley WA, Wannemuehler KA, Phillips-Howard PA, Rosen DH, Nahlen BL, Terlouw DJ, Adazu K, Vulule JM, Slutsker L, 2004. Sustainability of reductions in malaria transmission and infant mortality in western Kenya with use of insecticide-treated bednets: 4 to 6 years of follow-up. JAMA 291 : 2571–2580. [Google Scholar]
  14. Jalouk L, Al Ahmed M, Gradoni L, Maroli M, 2007. Insecticide-treated bednets to prevent anthroponotic cutaneous leishmaniasis in Aleppo Governorate, Syria: results from two trials. Trans R Soc Trop Med Hyg 101 : 360–367. [Google Scholar]
  15. Kroeger A, Ordonez-Gonzalez J, Behrend M, Alvarez G, 1999. Bednet impregnation for Chagas disease control: a new perspective. Trop Med Int Health 4 : 194–198. [Google Scholar]
  16. Kroeger A, Villegas E, Ordonez-Gonzalez J, Pabon E, Scorza JV, 2003. Prevention of the transmission of Chagas’ disease with pyrethroid-impregnated materials. Am J Trop Med Hyg 68 : 307–311. [Google Scholar]
  17. Cecere MC, Gurtler RE, Canale D, Chuit R, Cohen JE, 1997. The role of the peridomiciliary area in the elimination of Tri-atoma infestans from rural Argentine communities. Rev Panam Salud Publica 1 : 273–279. [Google Scholar]
  18. Pease GYF, 1999. Breve Historia Contemporánea del Perú. Dis-trito Federal, México: Fondo de Cultura Económica.
  19. Gurtler RE, Schweigmann NJ, Cecere MC, Chuit R, Wisnivesky-Colli C, 1993. Comparison of two sampling methods for domestic populations of Triatoma infestans in north-west Argen-tina. Med Vet Entomol 7 : 238–242. [Google Scholar]
  20. GoogleEarth, 2007. Satellite Photo Google. Available at: http://earth.google.com. Accessed March 20, 2007.
  21. Gurtler RE, Cohen JE, Cecere MC, Lauricella MA, Chuit R, Segura EL, 1998. Influence of humans and domestic animals on the household prevalence of Trypanosoma cruzi in Triato-ma infestans populations in northwest Argentina. Am J Trop Med Hyg 58 : 748–758. [Google Scholar]
  22. Rabinovich JE, 1972. Vital statistics of Triatominae (Hemiptera: Reduviidae) under laboratory conditions. I. Triatoma infestans Klug. J Med Entomol 9 : 351–370. [Google Scholar]
  23. Breslow N, 1984. Extra-Poisson variation in log-linear models. Appl Stat 33 : 38–44. [Google Scholar]
  24. Waller LA, Gotway CA, 2004. Applied Spatial Statistics for Public Health Data. Hoboken, NJ: John Wiley & Sons.
  25. Skarpaas O, Shea K, 2007. Dispersal patterns, dispersal mechanisms, and invasion wave speeds for invasive thistles. Am Nat 170 : 421–430. [Google Scholar]
  26. Akaike H, 1974. A new look at the statistical model identification. IEEE Trans Automat Control 19 : 716–723. [Google Scholar]
  27. Vazquez-Prokopec GM, Ceballos LA, Kitron U, Gurtler RE, 2004. Active dispersal of natural populations of Triatoma in-festans (Hemiptera: Reduviidae) in rural northwestern Argen-tina. J Med Entomol 41 : 614–621. [Google Scholar]
  28. Gurtler RE, Cecere MC, Vazquez DP, Chuit R, Cohen JE, 1996. Host-feeding patterns of domiciliary Triatoma infestans (Hemiptera: Reduviidae) in Northwest Argentina: seasonal and instar variation. J Med Entomol 33 : 15–26. [Google Scholar]
  29. Schweigmann N, Vallve S, Muscio O, Ghillini M, Alberti A, Wis-nivesky-Colli C, 1988. Dispersal flight by Triatoma infestans in an arid area of Argentina. Med Vet Entomol 2 : 401–404. [Google Scholar]
  30. Anderson RM, May RM, 1991. Infectious Diseases of Humans: Dynamics and Control. Oxford, NY: Oxford University Press.
http://instance.metastore.ingenta.com/content/journals/10.4269/ajtmh.2008.79.528
Loading
/content/journals/10.4269/ajtmh.2008.79.528
Loading

Data & Media loading...

  • Received : 11 Mar 2008
  • Accepted : 30 Jun 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