Prevalence of Calodium hepaticum (Syn. Capillaria hepatica) in house mice (Mus musculus) in the Azores archipelago

Resendes, A. R.; Amaral, André F.S.; Rodrigues, Armindo; Almerı́a, S.

doi:10.1016/j.vetpar.2008.11.001

Cited by 23 publications

(21 citation statements)

References 23 publications

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“…Only the diameter could be measured, being 0.112 mm. This description is consistent with those of other authors concerning this species, such as Ash and Orihel (2007), Resendes et al (2009) and Li et al (2010), among others.…”

Section: Resultssupporting

confidence: 93%

Hepatic parasitosis in two wood mice, Apodemus sylvaticus (Rodentia: Muridae), due to Aonchotheca annulosa (Nematoda: Trichuridae), and Eucoleus bacillatus (Nematoda: Trichuridae). Erratic parasitism or post mortem migration?

Debenedetti

Sáez-Durán

Sainz-Elipe

et al. 2014

Acta Parasitologica

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Aonchotheca annulosa and Eucoleus bacillatus are two capillariin nematodes parasitizing the intestinal and stomach mucosa, respectively, of various rodent species, and two, among others, component species of the helminth fauna of the wood mouse, Apodemus sylvaticus. A capillariin each was found in the liver parenchyma of two wood mice in a post-fire regeneration enclave in Serra Calderona Natural Park (Valencian Community, Spain). Due to their location, the preliminary identification of the helminths corresponded to Calodium hepaticum, a hepatic capillariin with rodents as its main host. So far, this species had never been found in Serra Calderona. To verify the preliminary identification, a comparative morphometric study between the specimens from Serra Calderona and a preserved individual of C. hepaticum from another enclave was carried out. Morphometric analysis revealed that the adult helminth as well as the eggs found in the liver of the first mouse belonged to A. annulosa, whereas the second one was identified as a male E. bacillatus. Moreover, the liver from both hosts showed a visible pathology, being the consequence of aberrant migration of the parasites. This is the first evidence that A. annulosa and E. bacillatus may migrate erratically and thus produce ectopic foci in other organs.

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Section: Resultssupporting

confidence: 93%

Hepatic parasitosis in two wood mice, Apodemus sylvaticus (Rodentia: Muridae), due to Aonchotheca annulosa (Nematoda: Trichuridae), and Eucoleus bacillatus (Nematoda: Trichuridae). Erratic parasitism or post mortem migration?

Debenedetti

Sáez-Durán

Sainz-Elipe

et al. 2014

Acta Parasitologica

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“…Infective eggs are ingested orally, and the larvae hatch in the region of the caecum, penetrate the mucous membrane, and reach the liver through the portal venous system, in which they develop into adults after molting four times (LI et al, 2010). They remain in the liver and produce eggs until their death (GALVÃO, 1981;RESENDES et al, 2009). Cannibalism, which is common in rodents, is considered to be the principal mechanism of egg dispersal, which is essential to the life cycle of this nematode (PIAZZA et al, 1963;NABI et al, 2007), but cannibalism is not the only method of dispersal.…”

Section: Introductionmentioning

confidence: 99%

“…The diagnosis of C. hepaticum infections is based on the detection of adult and juvenile worms and the typical egg, which has bipolar opercula with plugs (REPERANT; DEPLAZES, 2005;RESENDES et al, 2009;LI et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Calodium hepaticum (Nematoda: Capillariidae) in synanthropic rodents (Rattus norvegicus and Rattus rattus) in Eastern Amazonia

Moreira

Giese

Silva

et al. 2013

Rev. Bras. Parasitol. Vet.

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Calodium hepaticum (syn. Capillaria hepatica) is a trichurid nematode that parasitizes the hepatic parenchyma of rodents and other mammals. Infections in humans are rare, although they have been reported worldwide. A number of factors contribute to the distribution of this zoonosis, particularly the presence of dense populations of rodents associated with relatively poor urban environments, such as those found in parts of the northern Brazilian city of Belém in the eastern Amazon Basin. This study quantified Calodium infections in commensal synanthropic rodents in Belém. Rodents were captured in three neighborhoods characterized by poor public sanitation and the city's highest incidence of human leptospirosis. A total of 50 rodents were captured (26 Rattus rattus and 24 R. norvegicus), and 23 (10 R. rattus and 13 R. norvegicus) presented macroscopic lesions typical of C. hepaticum. Light microscopy of fresh samples and histological specimens permitted the identification of larvae and adult specimens containing numerous eggs with a double-striated shell and bipolar opercula with plugs. This is the first report of C. hepaticum in R. rattus and R. norvegicus from the Amazon Basin, and it shows a considerable risk of transmission to the local human population.Keywords: Calodium hepaticum, Rattus rattus, Rattus norvegicus, public health, synanthropic animals, zoonosis. ResumoCalodium hepaticum (syn. Capillaria hepatica) é um nematódeo trichurídeo parasito de parênquima hepático de roedores e outros mamíferos. As infecções em humanos são raras, mas são relatadas em diversas regiões do mundo. Numerosos fatores contribuem para a distribuição desta zoonose, particularmente, uma densa população de roedores associada com ambientes urbanos com carência de saneamento básico, tais como aqueles encontrados em algumas cidades da região Norte do Brasil, como a cidade de Belém, localizada na Amazônia Oriental. Este estudo quantifica e demonstra a infecção por Calodium em roedores comensais sinantrópicos, de três bairros da cidade de Belém, Estado do Pará, com carência de saneamento público e alta incidência de leptospirose humana. Um total de 50 roedores foram capturados para análise (26 Rattus rattus e 24 R. norvegicus) e destes, 23 (10 R. rattus e 13 R. norvegicus) apresentaram típicas lesões hepáticas, macroscópicas, causadas por C. hepaticum. A análise de amostras por microscopia de luz direta e histopatológica do fígado dos roedores permitiu a identificação de espécimes desse parasito em fase larvar e adulta, além de numerosos ovos apresentando dupla casca estriada e dois tampões operculares. Este é o primeiro registro da ocorrência de C. hepaticum in R. rattus and R. norvegicus na região Amazônica, alertando para um considerável risco de transmissão para a população humana.Palavras-chave: Calodium hepaticum, Rattus rattus, Rattus norvegicus, saúde pública, animais sinantrópicos, zoonose.

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“…Although some studies have shown C. hepatica in the liver of house mice and even named this nematode as a potential organism for biological control of mice plague through falling natality as well as decreased survival rate of mice from lactation period. 33,34 In addition, another study showed Capillaria in the liver of house mice and considered house mice as a source of infection, similar to Rattus species 35 Though in some studies with regard to low prevalence of Capillaria spp. in M. musculus, it has been suggested that this species is less affected by C. hepatica and house mice, also, is rarely infected by it.…”

Section: Discussionmentioning

confidence: 99%

Capillaria hepatica in Rattus Spp. Captured in Sanandaj and Orally uninfected Balb/C Mice With Embryonated Eggs

Zamini¹,

Khadem-Erfan²,

Faridi³

2017

Int J Basic Sci Med

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Prevalence of Calodium hepaticum (Syn. Capillaria hepatica) in house mice (Mus musculus) in the Azores archipelago

Cited by 23 publications

References 23 publications

Hepatic parasitosis in two wood mice, Apodemus sylvaticus (Rodentia: Muridae), due to Aonchotheca annulosa (Nematoda: Trichuridae), and Eucoleus bacillatus (Nematoda: Trichuridae). Erratic parasitism or post mortem migration?

Hepatic parasitosis in two wood mice, Apodemus sylvaticus (Rodentia: Muridae), due to Aonchotheca annulosa (Nematoda: Trichuridae), and Eucoleus bacillatus (Nematoda: Trichuridae). Erratic parasitism or post mortem migration?

Calodium hepaticum (Nematoda: Capillariidae) in synanthropic rodents (Rattus norvegicus and Rattus rattus) in Eastern Amazonia

Capillaria hepatica in Rattus Spp. Captured in Sanandaj and Orally uninfected Balb/C Mice With Embryonated Eggs

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