[Dirofilaria immitis (Leidy, 1856) in the neighborhood of a feline case: a study about the transmission].
نویسندگان
چکیده
Dirofilaria immitis preferably infects canids and can, in lower frequency, be found in cats (Felis catus Linnaeus, 1758). The parasite may be transmitted by various Culicidae species. Motivated by an autochtone feline heartworm case diagnosed in the region of Engenho Novo - RJ (S 22 degrees 90' e WO 43 degrees 27'), the following issues were surveyed: 1) the local Culicidae fauna and; 2) the ocurrence of microfilaremic dogs. The mosquito study was conducted from April 2003 through May 2004, by peri-domiciliary and intra-domiciliary captures. A total of 672 mosquitoes (female) of the following species were caught: Aedes aegypti (Linnaeus) (561/672-83.5%); Culex quinquefasciatus Say (96/672-14.3%); Aedes (Oc.) scapularis (Rondani) (12/672-1.8%) and Aedes albopictus (Skuse) (3/672-0.4%). Only A. aegypti and C. quinquefasciatus specimens were captured year-round. A total of 235 canine blood samples were collected during the Campanha de Vacinação "Rio Sem Raiva" in October 2003. No microfilaria could be found in any of the examined samples (Knott s and NAN techniques), even though only 3.4% of the dogs received chemoprophylaxis and the majority of them frequently traveled to endemic areas. The presence of vectors associated to a possible dog mobility, may have provided the right scenario for the feline D. immitis infection to happen in the studied area.
منابع مشابه
Potential vectors of Dirofilaria immitis (Leidy, 1856) in Itacoatiara, oceanic region of Niterói municipality, state of Rio de Janeiro, Brazil.
Dirofilaria immitis is a widespread mosquito-borne parasite that causes dirofilariasis, a commonly diagnosed disease of dogs that is rarely reported in cats and humans. A mosquito survey was conducted in Itacoatiara in the State of Rio de Janeiro, from March 1995 to February 1996, using canine, feline and human baits. A total of 3,667 mosquitoes were dissected for D. immitis larvae, representin...
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متن کامل
Vectorial competence of Aedes aegypti (Linnaeus 1762) Rio de Janeiro strain, to Dirofilaria immitis (Leidy 1856).
Dirofilaria immitis (Leidy 1856), a nematode parasite, is the etiologic agent of canine heartworm disease and mosquitoes are essential intermediate hosts. Mosquito susceptibility to the worms differ with species, strains and also among individuals of the same strain. To evaluate the degree of susceptibility of Rio de Janeiro laboratory raised strain of Aedes aegypti, we fed mosquitoes on canine...
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Correspondence: Hesamedin Banihashemi, MD. Faculty of Medicine, Hormozgan University of Medical Sciences. Bandar Abbas, Iran Tel:+98 76 33333687 Email: [email protected] ABSTRACT Introduction: Dirofilaria...
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Iran is one of the endemic areas of Dirofilariasis, and also one of the most important zoonotic infections. Dirofilaria immitis causes a severe and fatal disease called heartworm disease in dog. It also produces pulmonary nodules in humans. The worm is to be investigated as a potential infection of humans and animals in various provinces in Iran. In this research, the samples were ...
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عنوان ژورنال:
- Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria
دوره 18 Suppl 1 شماره
صفحات -
تاریخ انتشار 2009