Trichinellosis surveillance in wildlife in northeastern argentine patagonia

Winter, Marina; Pasqualetti, Mariana Inés; Fariña, Fernando Adrián; Ercole, Mariano Emmanuel; Failla, Mauricio; Perello, Milton; Birochio, Diego; Abate, S; Soricetti, Mariano; Ribicich, M.

doi:10.1016/j.vprsr.2017.11.009

Cited by 6 publications

(6 citation statements)

References 22 publications

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“…Trichinella spp. negative results by AD are in line with the negative results reported for other wild species in the study area, like white-eared opossum (Didelphis albiventris), big hairy armadillo (Chaetophractus vellosus), Geoffroy's cat (Leopardus geoffroyi), lesser grison (Galictis cuja), Molina's hog-nosed skunk (Conepatus chinga) and South American grey fox (Lycalopex gymnocercus) (Winter et al, 2018).…”

Section: Discussionsupporting

confidence: 89%

Toxoplasma gondii and Trichinella infections in wild boars (Sus scrofa) from Northeastern Patagonia, Argentina

Winter

Abate

Pasqualetti

et al. 2019

Preventive Veterinary Medicine

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Wild boar (Sus scrofa) was introduced in many countries of the world and is recognized as carrier of many infectious diseases. Wild game meat consumption is recognized as a source of transmission of Toxoplasma gondii and Trichinella spp. The aim of the present study was to evaluate the prevalence of antibodies to T. gondii and Trichinella spp. in freerange wild boars in Northeastern Argentine Patagonia. Between 2014 and 2018, 144 blood samples and 423 muscle samples from 423 carcasses were collected. To detect T. gondii IgG, 144 sera were processed by an immunofluorescent antibody test, and to detect anti-Trichinella IgG, 125 sera and 304 muscle juice samples were processed by ELISA. Detection of first stage larvae in muscle was performed by artificial digestion. A total of 423 wild boars muscle samples were negative to Trichinella spp. by artificial digestion. Antibodies to Trichinella spp. were detected in 2.4% (3/125) of serum samples and in 1.64% (5/304) of meat juice samples. Antibodies to T. gondii infection were detected in 12.5% (18/144) of the serum samples. This is the first study to reveal the presence of antibodies to T. gondii in wild boars from Argentina. The present results suggest that consumption of raw or undercooked wild boar meat could represent a potential source risk for toxoplasmosis in humans and that Trichinella spp. is infrequent and/or that it circulates in low burdens among wild boars in Northeastern Patagonia.

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Section: Discussionsupporting

confidence: 89%

Toxoplasma gondii and Trichinella infections in wild boars (Sus scrofa) from Northeastern Patagonia, Argentina

Winter

Abate

Pasqualetti

et al. 2019

Preventive Veterinary Medicine

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“…The analysis of samples from wild carnivores by artificial enzymatic digestion was the first study performed in Brazil. The negative results are in line with negative results reported for other wild species such as white-eared opossums ( Didelphis albiventris ), hairy armadillos ( Chaetophractus vellosus ), Geoffroy’s cats ( Leopardus geoffroyi ), ferrets ( Galictis cuja ), Molina’s hog-nosed skunk ( Conepatus chinga ), and Pampas foxes ( Lycalopex gymnocercus ) from the northeastern region of Argentinean Patagonia [ 54 ].…”

Section: Discussionsupporting

confidence: 88%

Seropositive Wild Boars Suggesting the Occurrence of a Wild Cycle of Trichinella spp. in Brazil

Silva

Mendonça

Machado

et al. 2022

Animals

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Trichinella is a zoonotic nematode traditionally detected worldwide in both domestic and wild animals. In South America, along with the occurrence of this parasite in domestic pigs and wild boars, there are reports of infection in wild carnivores. Brazil is considered free of the domestic cycle of Trichinella, but there is unpublished serological evidence of infection in wild boars, which changed the Brazilian status in OIE regarding the disease after an official communication. We investigated Trichinella spp. infection in wild boars and wild carnivores in the Southeastern region of Brazil. A total of 136 samples were tested, 121 from wild boars and 15 from wild carnivores. Artificial enzymatic digestion (AED) tests were performed on muscle samples from 37 wild boars and 15 wild carnivores, and 115 serum samples from wild boars were tested by iELISA. Seven serum samples from wild boars tested positive (7/115 = 6.1%, 95% CI 3.0–12.0), but no larvae were found in the AED. There was no significant difference between sex, age, and location of the samples. The serological results suggest that a wild cycle of Trichinella spp. may occur in Brazil, but further analyses should be performed to confirm the presence of the parasite.

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“…Given that, few studies have assessed the presence of Trichinella infection in native carnivores in Chile: Alvarez et al [26] included two güiñas and 24 lesser grisons, in addition to other mammals, and González-Acuña et al [27] included two güiñas, with negative results in both cases. Other studies in Argentina included another wild cat (Leopardus geoffroyi) and the lesser grison with negative results [32,33]. Thus, this is the rst record of Trichinella larvae in a native mustelid in South America, and the rst record of T. spiralis in the güiña, with the güiña being the second South American felid host for this parasitic species.…”

Section: Discussionmentioning

confidence: 79%

Trichinella in Wildlife in Chile With the First Record in Leopardus Guigna and Galictis Cuja

Echeverry

Henríquez

González‐Acuña

et al. 2021

Preprint

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Background: Trichinellosis is a worldwide distributed disease caused by Trichinella species and also considered neglected and emerging. Trichinella spp. are transmitted by predation or carrion consumption and present a domestic and a sylvatic cycle. Human trichinellosis occurs due to the consumption of raw or poorly cooked infected meat, mainly associated with the household slaughter of pigs without veterinary inspection, a cultural practice that is difficult to resolve. Therefore, the knowledge of the reservoir of this parasite is relevant. Methods: The aim of this study was to assess the presence of Trichinella sp. in several carnivore and omnivore vertebrates in Central-Southern Chile. A total of 61 animals, either found run over or that died in rescue/rehabilitation centers, encompassing 15 species, were examined by artificial digestion for detection of Trichinella larvae, and larvae were molecularly analyzed to identify the species. Results: Trichinella larvae were found in a Leopardus guigna and a Galictis cuja. Only those of L. guigna could be identified as Trichinella spiralis. Conclusions: This is the first record of Trichinella in a native mustelid of South America and the first record of T. spiralis in L. guigna. These results increase the number of hosts, enhancing the need to identify the role of these animals in the reservoir for humans, and highlighting the priority that the study of the rural-sylvatic interphase represents.

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Trichinellosis surveillance in wildlife in northeastern argentine patagonia

Cited by 6 publications

References 22 publications

Toxoplasma gondii and Trichinella infections in wild boars (Sus scrofa) from Northeastern Patagonia, Argentina

Toxoplasma gondii and Trichinella infections in wild boars (Sus scrofa) from Northeastern Patagonia, Argentina

Seropositive Wild Boars Suggesting the Occurrence of a Wild Cycle of Trichinella spp. in Brazil

Trichinella in Wildlife in Chile With the First Record in Leopardus Guigna and Galictis Cuja

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