Incidence of myiasis in Panama during the eradication of Cochliomyia hominivorax (Coquerel 1858, Diptera: Calliphoridae) (2002-2005).
Abstract: We present the results of a study on myiasis in Panama during the first years of a Cochliomyia hominivorax eradication program (1998-2005), with the aim of investigating the behavior of the flies that produce myiasis in animals and human beings. The hosts that registered positive for myiasis were cattle (46.4%), dogs (15.3%), humans (14.7%), birds (12%), pigs (6%), horses (4%), and sheep (1%). Six fly species caused myiasis: Dermatobia hominis (58%), Phaenicia spp. (20%), Cochliomyia macellaria (19%), Chrysomya rufifacies (0.4%), and maggots of unidentified species belonging to the Sarcophagidae (3%) and Muscidae (0.3%). With the Dubois index, was no evidence that the absence of C. hominivorax allowed an increase in the cases of facultative myiasis.
Publication Date: 2007-10-10 PubMed ID: 17923994DOI: 10.1590/s0074-02762007005000074Google Scholar: Lookup
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Summary
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This study explores the occurrence of myiasis, a parasitic infestation by flies, in various animal species and humans in Panama during an eradication program against a specific fly species, Cochliomyia hominivorax, from 2002 to 2005. The research confirms that despite the elimination of the main culprit, C. hominivorax, there was no increase in myiasis caused by other fly species.
Study Overview
- The study investigated the prevalence of myiasis during the first years of a program aimed at eradicating Cochliomyia hominivorax, a species of fly notorious for causing myiasis. The investigation spanned from 1998 to 2005.
- The scope included the documentation and study of the behavior of flies causing myiasis in animals and humans.
Findings and Results
- The investigation revealed that the hosts that tested positive for myiasis were mainly cattle (46.4%), dogs (15.3%), and humans (14.7%). Also affected to a lesser extent were birds (12%), pigs (6%), horses (4%), and sheep (1%).
- The study found that six different species of flies caused myiasis: Dermatobia hominis (58%), Phaenicia spp. (20%), Cochliomyia macellaria (19%), Chrysomya rufifacies (0.4%), and unidentified maggots belonging to the Sarcophagidae (3%) and Muscidae (0.3%) families.
- Using the Dubois index, a method for measuring the incidence of diseases, the researchers found no evidence suggesting that, in the absence of the C. hominivorax fly, there was an increase in cases of myiasis caused by the other types of flies.
Significance of the Study
- This study provides valuable insights into the incidence of myiasis in various species during a period of targeted eradication against a specific fly species – Cochliomyia hominivorax.
- The findings indicate that the eradication of this species did not cause a rise in myiasis caused by other species – which is crucial information for public health planning and control of myiasis.
Cite This Article
APA
Bermúdez SE, Espinosa JD, Cielo AB, Clavel F, Subía J, Barrios S, Medianero E.
(2007).
Incidence of myiasis in Panama during the eradication of Cochliomyia hominivorax (Coquerel 1858, Diptera: Calliphoridae) (2002-2005).
Mem Inst Oswaldo Cruz, 102(6), 675-679.
https://doi.org/10.1590/s0074-02762007005000074 Publication
Researcher Affiliations
- Sección de Entomología Médica, Instituto Conmemorativo Gorgas de Estudios de la Salud, 0816-02593, Panamá. sbermudez@gorgas.gob.pa
MeSH Terms
- Animals
- Cattle
- Chickens
- Diptera
- Dogs
- Horses
- Humans
- Incidence
- Insect Control
- Insect Vectors
- Myiasis / epidemiology
- Myiasis / parasitology
- Myiasis / veterinary
- Panama / epidemiology
- Population Density
- Sheep
- Swine
Citations
This article has been cited 5 times.- Pezzi M, Krčmar S, Mendicino F, Carlomagno F, Bonelli D, Scapoli C, Chicca M, Leis M, Bonacci T. Lucilia sericata (Diptera: Calliphoridae) as Agent of Myiasis in a Goose in Italy and a Review of Myiasis by This Species in Birds. Insects 2022 Jun 13;13(6).
- Alvarez Garcia DM, Pérez-Hérazo A, Amat E. Life History of Cochliomyia macellaria (Fabricius, 1775) (Diptera, Calliphoridae), a Blowfly of Medical and Forensic Importance. Neotrop Entomol 2017 Dec;46(6):606-612.
- López Millán C, Olea MS, Dantur Juri MJ. Unusual presence of Ornidia robusta (Diptera: Syrphidae) causing pig myiasis in Argentina. Parasitol Res 2015 Dec;114(12):4731-5.
- Cardoso GA, Cunha VAS, Genevcius BC, Madeira-Ott T, Costa BMA, Rossoni DM, Thyssen PJ, Torres TT. Origins and Diversification of Myiasis Across Blowflies. Ecol Evol 2025 Feb;15(2):e70993.
- Espinoza-Gómez F, Rojas-Larios F, Cruz-Sanchez S, Rodriguez-Hernandez A, Delgado-Enciso I. Case Report: Outbreak of Nosocomial Myiasis by Cochliomyia macellaria (Diptera, Calliphoridae) in a Hospital in Colima, Mexico. Am J Trop Med Hyg 2023 Oct 4;109(4):748-751.
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