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

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 u...

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Autores principales: Vezzani, D., Eiras, D.F., Wisnivesky, C.
Formato: JOUR
Materias:
Aedes aegypti
Argentina
Canine heartworm
Culex pipiens
Dirofilaria
Mosquito vector
South America
Dirofilaria immitis
filariasis
lung infection
mosquito
nonhuman
parasite vector
prevalence
review
Canis familiaris
Nasua nasua
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03044017_v136_n3-4_p259_Vezzani
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03044017_v136_n3-4_p259_Vezzani
record_format dspace
spelling todo:paper_03044017_v136_n3-4_p259_Vezzani2023-10-03T15:20:31Z Dirofilariasis in Argentina: Historical review and first report of Dirofilaria immitis in a natural mosquito population Vezzani, D. Eiras, D.F. Wisnivesky, C. Aedes aegypti Argentina Canine heartworm Culex pipiens Dirofilaria Mosquito vector South America Aedes aegypti Argentina Culex pipiens Dirofilaria immitis filariasis lung infection mosquito nonhuman parasite vector prevalence review Aedes aegypti Canis familiaris Culex pipiens Dirofilaria Dirofilaria immitis Nasua nasua 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°C, the potential transmission period (PTP) for D. immitis in Buenos Aires covers 6 months, and the most favourable period (mean temperature above 20°C) 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. © 2005 Elsevier B.V. All rights reserved. Fil:Vezzani, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03044017_v136_n3-4_p259_Vezzani
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Aedes aegypti
Argentina
Canine heartworm
Culex pipiens
Dirofilaria
Mosquito vector
South America
Aedes aegypti
Argentina
Culex pipiens
Dirofilaria immitis
filariasis
lung infection
mosquito
nonhuman
parasite vector
prevalence
review
Aedes aegypti
Canis familiaris
Culex pipiens
Dirofilaria
Dirofilaria immitis
Nasua nasua
spellingShingle Aedes aegypti
Argentina
Canine heartworm
Culex pipiens
Dirofilaria
Mosquito vector
South America
Aedes aegypti
Argentina
Culex pipiens
Dirofilaria immitis
filariasis
lung infection
mosquito
nonhuman
parasite vector
prevalence
review
Aedes aegypti
Canis familiaris
Culex pipiens
Dirofilaria
Dirofilaria immitis
Nasua nasua
Vezzani, D.
Eiras, D.F.
Wisnivesky, C.
Dirofilariasis in Argentina: Historical review and first report of Dirofilaria immitis in a natural mosquito population
topic_facet Aedes aegypti
Argentina
Canine heartworm
Culex pipiens
Dirofilaria
Mosquito vector
South America
Aedes aegypti
Argentina
Culex pipiens
Dirofilaria immitis
filariasis
lung infection
mosquito
nonhuman
parasite vector
prevalence
review
Aedes aegypti
Canis familiaris
Culex pipiens
Dirofilaria
Dirofilaria immitis
Nasua nasua
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°C, the potential transmission period (PTP) for D. immitis in Buenos Aires covers 6 months, and the most favourable period (mean temperature above 20°C) 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. © 2005 Elsevier B.V. All rights reserved.
format JOUR
author Vezzani, D.
Eiras, D.F.
Wisnivesky, C.
author_facet Vezzani, D.
Eiras, D.F.
Wisnivesky, C.
author_sort Vezzani, D.
title Dirofilariasis in Argentina: Historical review and first report of Dirofilaria immitis in a natural mosquito population
title_short Dirofilariasis in Argentina: Historical review and first report of Dirofilaria immitis in a natural mosquito population
title_full Dirofilariasis in Argentina: Historical review and first report of Dirofilaria immitis in a natural mosquito population
title_fullStr Dirofilariasis in Argentina: Historical review and first report of Dirofilaria immitis in a natural mosquito population
title_full_unstemmed Dirofilariasis in Argentina: Historical review and first report of Dirofilaria immitis in a natural mosquito population
title_sort dirofilariasis in argentina: historical review and first report of dirofilaria immitis in a natural mosquito population
url http://hdl.handle.net/20.500.12110/paper_03044017_v136_n3-4_p259_Vezzani
work_keys_str_mv AT vezzanid dirofilariasisinargentinahistoricalreviewandfirstreportofdirofilariaimmitisinanaturalmosquitopopulation
AT eirasdf dirofilariasisinargentinahistoricalreviewandfirstreportofdirofilariaimmitisinanaturalmosquitopopulation
AT wisniveskyc dirofilariasisinargentinahistoricalreviewandfirstreportofdirofilariaimmitisinanaturalmosquitopopulation
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