ArticleThe American journal of tropical medicine and hygiene2015
Effectiveness of Large-Scale Chagas Disease Vector Control Program in Nicaragua by Residual Insecticide Spraying Against Triatoma dimidiata.
Article in The American journal of tropical medicine and hygiene, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Triatoma venosa and Panstrongylus geniculatus challenge the certification of interruption of vectorial Trypanosoma cruzi transmission by Rhodnius prolixus in eastern Colombia.PLoS neglected tropical diseases · 2025Article
- Modeling the impact of xenointoxication in dogs to halt Trypanosoma cruzi transmission.PLoS computational biology · 2023Article
- Modeling the impact of xenointoxication in dogs to haltmedRxiv : the preprint server for health sciences · 2023Article
- Evaluation of the Effectiveness of Chemical Control for Chagas Disease Vectors in Loja Province, Ecuador.Vector borne and zoonotic diseases (Larchmont, N.Y.) · 2022Article
- Evaluation of Selective Deltamethrin Application with Household and Community Awareness for the Control of Chagas Disease in Southern Ecuador.Journal of medical entomology · 2022Article
- Chagas disease control-surveillance in the Americas: the multinational initiatives and the practical impossibility of interrupting vector-borne Trypanosoma cruzi transmission.Memorias do Instituto Oswaldo Cruz · 2022Article
- Integrated vector control of Chagas disease in Guatemala: a case of social innovation in health.Infectious diseases of poverty · 2020Article
- Protein mass spectrometry detects multiple bloodmeals for enhanced Chagas disease vector ecology.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2019Article
- A decade of vector control activities: Progress and limitations of Chagas disease prevention in a region of Guatemala with persistent Triatoma dimidiata infestation.PLoS neglected tropical diseases · 2018Article
- Uncovering vector, parasite, blood meal and microbiome patterns from mixed-DNA specimens of the Chagas disease vector Triatoma dimidiata.PLoS neglected tropical diseases · 2018Article
- Protein mass spectrometry extends temporal blood meal detection over polymerase chain reaction in mouse-fed Chagas disease vectors.Memorias do Instituto Oswaldo Cruz · 2018Article
- The resilience of Triatoma dimidiata: An analysis of reinfestation in the Nicaraguan Chagas disease vector control program (2010-2016).PloS one · 2018Article
- Implementing a vector surveillance-response system for chagas disease control: a 4-year field trial in Nicaragua.Infectious diseases of poverty · 2017Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Chagas disease is one of the most serious health problems in Latin America. Because the disease is transmitted mainly by triatomine vectors, a three-phase vector control strategy was used to reduce its vector-borne transmission. In Nicaragua, we implemented an indoor insecticide spraying program in five northern departments to reduce house infestation by Triatoma dimidiata. The spraying program was performed in two rounds. After each round, we conducted entomological evaluation to compare the vector infestation level before and after spraying. A total of 66,200 and 44,683 houses were sprayed in the first and second spraying rounds, respectively. The entomological evaluation showed that the proportion of houses infested by T. dimidiata was reduced from 17.0% to 3.0% after the first spraying, which was statistically significant (P < 0.0001). However, the second spraying round did not demonstrate clear effectiveness. Space-time analysis revealed that reinfestation of T. dimidiata is more likely to occur in clusters where the pre-spray infestation level is high. Here we discuss how large-scale insecticide spraying is neither effective nor affordable when T. dimidiata is widely distributed at low infestation levels. Further challenges involve research on T. dimidiata reinfestation, diversification of vector control strategies, and implementation of sustainable vector surveillance.
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