Effectiveness of insecticide-impregnated collars for the control of canine visceral leishmaniasis

Alves, Erika Barretto; Figueiredo, Fabiano Borges; Rocha, Marília Fonseca; Castro, Márcia C.; Werneck, Guilherme Loureiro

doi:10.1016/j.prevetmed.2020.105104

Cited by 18 publications

(26 citation statements)

References 38 publications

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“…Without the direct data produced by Alves et al (2020) 11 , the present study could not have been carried out. Through a systematic and exhaustive approach, these authors provided data on the effectiveness of the control measures under evaluation.…”

Section: Discussionmentioning

confidence: 91%

“…This was an economic study that included a cost-effectiveness analysis (CEA) conducted from the perspective of the Unified Health System (Sistema Único de Saúde - SUS), using data from the VL Control Program implemented in the municipality of Montes Claros, Minas Gerais, along with results from the project coordinated by Dr. Guilherme Werneck 11 .…”

Section: Methodsmentioning

confidence: 99%

“…The estimate was not available for the first 6 months (assumed odds ratio [OR] = 1 in the first 6 months, as the base case) but showed decreasing values every 6 months in the original study. This variation in the effectiveness of collaring in the prevention of canine infection was included in the base case of the model, using the following OR values: OR = 1 for month 0-6, OR = 0.54 for months 7-12, OR = 0.48 for months 13-18, and OR= 0.45 for months 19-24 11 .…”

Section: Methodsmentioning

confidence: 99%

“…For the cost variable, a triangular distribution was assumed, with the value R$ 8.54 as the most likely value and the values R$ 3.82 and R$ 12.82 as the outliers. The lower outlier was derived from the threshold analysis performed in the cost-effectiveness study of collars for the prevention of human VL cases, in which a cost of R$ 3.82 per dog collar was associated with an ICER of R$ 86,626 per avoided human case of VL 11 . The upper outlier (R$ 12.82) for this sensitivity analysis was the approximate unit value of a dog collar, according to the base case of the present study.…”

Section: Methodsmentioning

confidence: 99%

“…Between 2011 and 2016, Alves et al (2020) 11 evaluated the effectiveness of collars impregnated with 4% deltamethrin (Scalibor ® ) used in addition to control measures already recommended in Brazil (vector control with insecticides, monitoring of canine infection, and subsequent sacrifice of seropositive dogs). In total, 22 sampling units were studied in the cities of Teresina (Piauí), Fortaleza, Canindé, Maracanaú and Eusébio (Ceará), Araguaína (Tocantins), and Montes Claros (Minas Gerais), with over 120,000 dogs collared in the intervention areas and over 90,000 dogs examined in the control areas.…”

Section: Introductionmentioning

confidence: 99%

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Cost-effectiveness of a canine visceral leishmaniasis control program in Brazil based on insecticide-impregnated collars

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Azeredo-da-Silva

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et al. 2020

Rev. Soc. Bras. Med. Trop.

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INTRODUCTION: The use of insecticide-impregnated dog collars is a potentially useful tool for the control of visceral leishmaniasis. The objective of the present study was to perform a cost-effectiveness analysis of a program based on insecticide-impregnated collars compared to traditional visceral leishmaniasis control strategies used in Brazil. METHODS: A cost-effectiveness analysis was performed from the perspective of the Unified Health System, using data from the Visceral Leishmaniasis Control Program implemented in the municipality of Montes Claros, Minas Gerais. The direct costs of the three control strategies, which were 1) canine infection screening + sacrifice, 2) residual chemical control of the vector, and 3) insecticide-impregnated dog collars (Scalibor ® ), were evaluated over the two-year study period. RESULTS: The total cost of the program in the area subjected to the traditional control strategies (strategies 1 and 2; control area) was R$ 1,551,699.80, and in the area subjected to all three control strategies (intervention area), it was R$ 1,898,190.16. The collar program was considered highly cost-effective at preventing canine visceral leishmaniasis (incremental cost-effectiveness ratio of approximately R$ 578 per avoided dog sacrifice). CONCLUSIONS: These results provide support for the decision by the Brazilian Ministry of Health in 2019 to provide insecticide-impregnated collars for the control of canine visceral leishmaniasis in a pilot project.

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Section: Discussionmentioning

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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