Dirofilariasis in Argentina: Historical review and first report of <i>Dirofilaria immitis</i> in a natural mosquito population

Autores
Vezzani, Darío; Eiras, Diego Fernando; Wisnivesky, Cristina
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Argentina is one of the four South American countries where the presence of Dirofilaria immitis is currently confirmed. The objective of this study was to review information on dirofilariasis in the country, and to report our recent findings on mosquito vectors. Since the first report of dogs with unidentified microfilariae in 1926, D. immitis was found in seven provinces and canine prevalence ranged 0–71% at local scale. National prevalence was 8% by the end of the 1980s and current information is available only for Buenos Aires Province. Four pulmonary human infections of D. immitis and one subcutaneous of Dirofilaria sp. were documented. The common coati was the only wild host found, and natural infection in mosquitoes was not previously reported in the country. In our recent mosquito survey in Greater Buenos Aires, we captured and dissected 2380 mosquitoes belonging to 20 species. According to a minimum temperature of 14 8C, the potential transmission period (PTP) for D. immitis in Buenos Aires covers 6 months, and the most favourable period (mean temperature above 20 8C) takes place from the middle of November to the beginning of April. To identify potential vectors of the parasite, we assessed weekly abundances of mosquito species during those PTP estimated previously. We found two specimens of Culex pipiens and one of Aedes aegypti carrying non-infective stages of D. immitis. These two highly anthropophilic mosquitoes may enhance the role of D. immitis as zoonotic agent in temperate Argentina.
Facultad de Ciencias Veterinarias
Materia
Ciencias Veterinarias
Dirofilaria
Canine heartworm
South America
Argentina
Mosquito vector
Culex pipiens
Aedes aegypti
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/150900

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spelling Dirofilariasis in Argentina: Historical review and first report of <i>Dirofilaria immitis</i> in a natural mosquito populationVezzani, DaríoEiras, Diego FernandoWisnivesky, CristinaCiencias VeterinariasDirofilariaCanine heartwormSouth AmericaArgentinaMosquito vectorCulex pipiensAedes aegyptiArgentina is one of the four South American countries where the presence of Dirofilaria immitis is currently confirmed. The objective of this study was to review information on dirofilariasis in the country, and to report our recent findings on mosquito vectors. Since the first report of dogs with unidentified microfilariae in 1926, D. immitis was found in seven provinces and canine prevalence ranged 0–71% at local scale. National prevalence was 8% by the end of the 1980s and current information is available only for Buenos Aires Province. Four pulmonary human infections of D. immitis and one subcutaneous of Dirofilaria sp. were documented. The common coati was the only wild host found, and natural infection in mosquitoes was not previously reported in the country. In our recent mosquito survey in Greater Buenos Aires, we captured and dissected 2380 mosquitoes belonging to 20 species. According to a minimum temperature of 14 8C, the potential transmission period (PTP) for D. immitis in Buenos Aires covers 6 months, and the most favourable period (mean temperature above 20 8C) takes place from the middle of November to the beginning of April. To identify potential vectors of the parasite, we assessed weekly abundances of mosquito species during those PTP estimated previously. We found two specimens of Culex pipiens and one of Aedes aegypti carrying non-infective stages of D. immitis. These two highly anthropophilic mosquitoes may enhance the role of D. immitis as zoonotic agent in temperate Argentina.Facultad de Ciencias Veterinarias2006info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf259-273http://sedici.unlp.edu.ar/handle/10915/150900enginfo:eu-repo/semantics/altIdentifier/issn/0304-4017info:eu-repo/semantics/altIdentifier/doi/10.1016/j.vetpar.2005.10.026info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:38:51Zoai:sedici.unlp.edu.ar:10915/150900Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:38:51.897SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Dirofilariasis in Argentina: Historical review and first report of <i>Dirofilaria immitis</i> in a natural mosquito population
title Dirofilariasis in Argentina: Historical review and first report of <i>Dirofilaria immitis</i> in a natural mosquito population
spellingShingle Dirofilariasis in Argentina: Historical review and first report of <i>Dirofilaria immitis</i> in a natural mosquito population
Vezzani, Darío
Ciencias Veterinarias
Dirofilaria
Canine heartworm
South America
Argentina
Mosquito vector
Culex pipiens
Aedes aegypti
title_short Dirofilariasis in Argentina: Historical review and first report of <i>Dirofilaria immitis</i> in a natural mosquito population
title_full Dirofilariasis in Argentina: Historical review and first report of <i>Dirofilaria immitis</i> in a natural mosquito population
title_fullStr Dirofilariasis in Argentina: Historical review and first report of <i>Dirofilaria immitis</i> in a natural mosquito population
title_full_unstemmed Dirofilariasis in Argentina: Historical review and first report of <i>Dirofilaria immitis</i> in a natural mosquito population
title_sort Dirofilariasis in Argentina: Historical review and first report of <i>Dirofilaria immitis</i> in a natural mosquito population
dc.creator.none.fl_str_mv Vezzani, Darío
Eiras, Diego Fernando
Wisnivesky, Cristina
author Vezzani, Darío
author_facet Vezzani, Darío
Eiras, Diego Fernando
Wisnivesky, Cristina
author_role author
author2 Eiras, Diego Fernando
Wisnivesky, Cristina
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Veterinarias
Dirofilaria
Canine heartworm
South America
Argentina
Mosquito vector
Culex pipiens
Aedes aegypti
topic Ciencias Veterinarias
Dirofilaria
Canine heartworm
South America
Argentina
Mosquito vector
Culex pipiens
Aedes aegypti
dc.description.none.fl_txt_mv Argentina is one of the four South American countries where the presence of Dirofilaria immitis is currently confirmed. The objective of this study was to review information on dirofilariasis in the country, and to report our recent findings on mosquito vectors. Since the first report of dogs with unidentified microfilariae in 1926, D. immitis was found in seven provinces and canine prevalence ranged 0–71% at local scale. National prevalence was 8% by the end of the 1980s and current information is available only for Buenos Aires Province. Four pulmonary human infections of D. immitis and one subcutaneous of Dirofilaria sp. were documented. The common coati was the only wild host found, and natural infection in mosquitoes was not previously reported in the country. In our recent mosquito survey in Greater Buenos Aires, we captured and dissected 2380 mosquitoes belonging to 20 species. According to a minimum temperature of 14 8C, the potential transmission period (PTP) for D. immitis in Buenos Aires covers 6 months, and the most favourable period (mean temperature above 20 8C) takes place from the middle of November to the beginning of April. To identify potential vectors of the parasite, we assessed weekly abundances of mosquito species during those PTP estimated previously. We found two specimens of Culex pipiens and one of Aedes aegypti carrying non-infective stages of D. immitis. These two highly anthropophilic mosquitoes may enhance the role of D. immitis as zoonotic agent in temperate Argentina.
Facultad de Ciencias Veterinarias
description Argentina is one of the four South American countries where the presence of Dirofilaria immitis is currently confirmed. The objective of this study was to review information on dirofilariasis in the country, and to report our recent findings on mosquito vectors. Since the first report of dogs with unidentified microfilariae in 1926, D. immitis was found in seven provinces and canine prevalence ranged 0–71% at local scale. National prevalence was 8% by the end of the 1980s and current information is available only for Buenos Aires Province. Four pulmonary human infections of D. immitis and one subcutaneous of Dirofilaria sp. were documented. The common coati was the only wild host found, and natural infection in mosquitoes was not previously reported in the country. In our recent mosquito survey in Greater Buenos Aires, we captured and dissected 2380 mosquitoes belonging to 20 species. According to a minimum temperature of 14 8C, the potential transmission period (PTP) for D. immitis in Buenos Aires covers 6 months, and the most favourable period (mean temperature above 20 8C) takes place from the middle of November to the beginning of April. To identify potential vectors of the parasite, we assessed weekly abundances of mosquito species during those PTP estimated previously. We found two specimens of Culex pipiens and one of Aedes aegypti carrying non-infective stages of D. immitis. These two highly anthropophilic mosquitoes may enhance the role of D. immitis as zoonotic agent in temperate Argentina.
publishDate 2006
dc.date.none.fl_str_mv 2006
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