The Prevalence of Cestodes in Raccoons (Procyon lotor) from North-Central Texas

Kelley, Samuel W.; Horner, Norman V.

doi:10.1654/4342.1

Cited by 6 publications

(7 citation statements)

References 25 publications

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“…In some areas of Texas, the prevalence of adult H. americana infection is as high as 47% in raccoons of all ages, and up to 85% in older raccoons. 7 Although H. americana infections in horses in this same geographic region have long been suspected, 2,3 definitive evidence has only come recently with the successful amplification and sequencing of a portion of the 18 S small subunit ribosomal RNA (SSU rRNA) gene of H. americana from the liver of an infected horse. 5 Horses with presumptive heterobilharziasis typically had small randomly disseminated granulomas in the liver.…”

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confidence: 99%

Natural Heterobilharzia americana Infection in Horses in Texas

et al. 2012

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The schistosome Heterobilharzia americana infects dogs, raccoons, and other mammals in the southeastern United States. Migration of eggs into the liver results in parasitic granulomas with varying degrees of fibrosis and inflammation. Recently, hepatic parasitic granulomas in horses were shown to be caused by H. americana infection. In the present study, samples of liver from 11 of 12 horses with hepatic granulomas identified at necropsy (n ¼ 11) or surgical biopsy (n ¼ 1) were used for DNA extraction, polymerase chain reaction amplification and sequencing using primers specific for a portion of the H. americana small subunit ribosomal RNA gene. A polymerase chain reaction amplicon of the correct size was produced from the extracted DNA in 8 of the 11 horses. Amplicons from 5 of the 8 positive horses were sequenced and had 100% identity with H. americana. In all but 2 of the 12 horses, Heterobilharzia was not responsible for the primary clinical disease, and the hepatic granulomas were considered an incidental finding.

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Natural Heterobilharzia americana Infection in Horses in Texas

et al. 2012

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“…Cestode infection in Red Panda (Lama et al 2015) had shown from KBCA similarly the Red Panda of RNP have been reported to be infected with Moniezia, a common herbivore cestode parasite but none of the Red Panda samples collected from Illam were positive. However three genera of cestode had been reported from Raccoon in Archer and Wichita countries of North Central Taxas including Atrioenia procyonis, Mesocestoides spp., Taenia pisiformis (Kelley and Horner 2008).…”

Section: Resultsmentioning

confidence: 99%

Parasitic burden in Red panda (Ailurus fulgens Cuvier, 1825) of Illam district Community forest, Nepal

Shrestha¹,

Maharjan²

2015

Nep. J. Zool.

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Parasitic diseases pose significant conservation threat in conservation of Red panda. In order to assess the parasitic burden in Red panda of Illam district, Nepal, 14 faecal samples were aseptically collected from community forest of Illam using line transect method following the GPS location. The samples were examined using standard concentration techniques. All the collected samples were found to be positive for both protozoan and helminth parasites. The recorded protozoan parasites includes Eimeria sp., Entamoeba sp., and Balantidium sp. with 64.28%, 57.14% and 14.28% proportion respectively. Similarly the proportion of seven helmithes parasites revealed Oxyuris (100%), Baylisascaris (57.14%), Trichostrongylus (50%), Strongyloides (50%), Trichuris (42.8%), Crenosoma (42.85%) and Hookworm (35.7%). The most of the samples (78.52%) revealed either multiple parasitic infection or triple infection (21.42%) with low to moderate intensity of infection. In conclusion, The parasitic burden in Red Pandas of Illam, community forest is very high hence urgently needs to address this threat in Red panda conservation action plan.

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“…Further investigation is needed to understand the impact of this parasite on our biodiversity, as it poses a potentially severe threat. A survey in Texas emphasized the severity of H. americana infection among raccoons, indicating a prevalence of up to 47% in raccoons of all ages and up to 85% in older raccoons [ 55 ]. This high prevalence was suspected to be the cause of H. americana infection in horses in the same locality [ 36 ].…”

Section: Discussionmentioning

confidence: 99%

Canine Schistosomiasis in the West Coast: Heterobilharzia americana in Two Natural Intermediate Hosts Found in the Colorado River, California

Baniya,

Goldy,

Ardpairin

et al. 2024

Pathogens

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The emergence of infectious diseases presents a significant global health, economic, and security risk. Climate change can unexpectedly lead to the spread of pathogens, vectors, or hosts into new areas, contributing to the rise of infectious diseases. Surveillance plays a crucial role in monitoring disease trends and implementing control strategies. In this study, we document the first discovery of Heterobilharzia americana, a parasitic schistosome of mammals and its intermediate hosts Galba cubensis and Galba humilis along the banks of the Colorado River in California. We conducted multiple samplings of snails from various locations in the region with a previous history of canine schistosomiasis. Nucleotide sequencing of the multiple regions of the snails’ and parasites’ DNA revealed the coexistence of G. cubensis and G. humilis, both infected with H. americana. Phylogenetic analyses further validate the presence of H. americana in California, suggesting a wider distribution than previously reported. Our findings have implications for public health, veterinary medicine, and biodiversity conservation, contributing to developing effective control strategies to prevent the spread of this emerging infectious disease.

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The Prevalence of Cestodes in Raccoons (Procyon lotor) from North-Central Texas

Cited by 6 publications

References 25 publications

Natural Heterobilharzia americana Infection in Horses in Texas

Natural Heterobilharzia americana Infection in Horses in Texas

Parasitic burden in Red panda (Ailurus fulgens Cuvier, 1825) of Illam district Community forest, Nepal

Canine Schistosomiasis in the West Coast: Heterobilharzia americana in Two Natural Intermediate Hosts Found in the Colorado River, California

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