Trichinella infections in animals and humans of Iran and Turkey

Borhani, Mehdi; Fathi, Saeed; Harandi, Majid Fasihi; Şimşek, Sami; Ahmed, Haroon; Wu, Xiaoxia; Liu, Mingyuan

doi:10.3389/fmed.2023.1088507

Cited by 5 publications

(3 citation statements)

References 44 publications

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“…In European countries, cases of human trichinellosis as a result of infection with T. britovi through the consumption of Sus scrofa meat have been reported in Serbia [ 66 , 67 , 68 ], Portugal [ 69 ], Italy [ 70 , 71 , 72 , 73 , 74 ], Spain and Sweden [ 75 , 76 ], Greece [ 77 ], Iran and Turkey [ 78 ], France [ 79 , 80 , 81 ], and Slovakia [ 82 , 83 ]. Moreover, human infection with T. britovi through the consumption of other wild and domestic animals’ meat has been reported, including jackal meat [ 84 ], horse meat [ 73 ], domestic dog meat [ 85 ], and domestic pig meat in Spain [ 86 , 87 ], Argentina [ 88 ], Bulgaria [ 89 ], Sardinia [ 90 ], Corsica [ 91 ], and Slovakia [ 85 ].…”

Section: Discussionmentioning

confidence: 99%

First Identification and Molecular Characterization of Trichinella britovi (Nematoda: Trichinellidae) from the Pine Marten (Martes martes Linnaeus, 1758) in Romania

Marin,

Mederle,

Marucci

et al. 2023

Microorganisms

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Trichinella spp. are etiological zoonotic agents spread throughout the world and affect mammals, birds, and reptiles; they evolve via two cycles: domestic and sylvatic. Martes martes is a carnivorous nocturnal mammal from the family Mustelidae. In Romania, this host is widespread in all forests of the country. Martes martes has an extremely voracious appetite, feeding on fruit and also on a variety of small animals, including rodents such as mice and rats. The aim of this study was the identification and molecular characterization of Trichinella larvae isolated from the muscle tissue of Martes martes collected in different counties of Romania. The muscle samples were examined via artificial digestion, and the larvae were identified at the species level via multiplex PCR. The presence of larvae belonging to Trichinella britovi, a species frequently identified in wild carnivores in temperate zones, was observed. Although T. britovi has been already reported in several host species in Romania, this is the first time this species has been observed in a Martes martes specimen. This finding contributes to our knowledge about the host species involved in the maintenance of the Trichinella sylvatic cycle in Romania, and it confirms that this parasite is consistently present in the wild fauna of this country.

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Section: Discussionmentioning

confidence: 99%

First Identification and Molecular Characterization of Trichinella britovi (Nematoda: Trichinellidae) from the Pine Marten (Martes martes Linnaeus, 1758) in Romania

Marin,

Mederle,

Marucci

et al. 2023

Microorganisms

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“…The disease is both a public health hazard and a food safety problem in many parts of the world ( 1 , 2 ). Trichinella species have a wide range of hosts, but predators and omnivores are most affected ( 3 , 4 ). After eating infected meat, larvae are released and penetrate the intestinal mucosa.…”

Section: Introductionmentioning

confidence: 99%

Genetic identification of Trichinella species found in wild carnivores from the territory of Kazakhstan

Uakhit,

Mayer-Scholl,

Shin

et al. 2023

Front. Vet. Sci.

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Trichinellosis, also called trichinosis, is a foodborne parasitic disease caused by eating raw or undercooked meat from animals infected with Trichinella spp. larvae and affects both animals and humans. Although on the territory of Kazakhstan, the species characteristics and prevalence of this helminth were studied back in the 90s, the data have not been updated since then. Given the above, our study was aimed at identifying Trichinella spp. using parasitological and molecular genetics methods. In our work, we studied 160 samples of muscle tissue of wild animals living in the natural zones of steppes and semi-deserts. Of the animals examined, 32 were positive for Trichinella spp., including 1 lynx (Lynx lynx), 17 wolves (Canis lupus), 11 foxes (Vulpes vulpes), 1 jackal (Canis aureus) and 2 corsac foxes (Vulpes corsac). Helminths were extracted using the digestion method. DNA was extracted using a Gene Jet commercial kit (Thermo Fisher Scientific, United Kingdom). For species identification a multiplex PCR, amplification of ESV, ITS1, and ITS2 genes regions was performed. After that, uniplex PCR was performed on the 5S rDNA and ITS1 genes region for sequencing analysis. The resulting sequences were subsequently used to construct a phylogenetic tree and the studied samples were identified as Trichinella nativa and Trichinella britovi. Thus, we can conclude that there is a circulation of two species of Trichinella in Kazakhstan, highlighting that constant control and monitoring of wild animals are necessary to prevent transmission and protect the health of people.

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“…Some reports mention accidental infection when eating reptile meat, including lizards and turtles. However, no human-to-human parasite transmission has been reported [13,14]. Nematodes of the genus Trichinella persist in the wild cycle, and their epidemiology is closely related to the nutritional behavior of host species.…”

Section: Introductionmentioning

confidence: 99%

Trichinellosis dissemination among wild carnivores in the Republic of Kazakhstan: A 10-year study

Akibekov,

Syzdykova,

Lider

et al. 2023

Vet World

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Background and Aim: Trichinellosis is caused by a species of roundworm called Trichinella and is an invasive disease causing severe medical, veterinary, and socioeconomic problems worldwide. More than 100 mammalian species are Trichinella hosts. Among domestic animals, pigs and dogs are prone to trichinellosis. An essential aspect of controlling the spread of infection is to identify the number and level of infections in wild carnivores in the country. However, the number, habitats, and movements of wild animal Trichinella hosts in Kazakhstan have not been reported yet. This study aimed to monitor the wild animal habitat nearby the settlements for tracking the trichinellosis speading among carnivores. Materials and Methods: Wild carnivorous animals were captured in seven regions of the Republic of Kazakhstan. The carcasses of corsacs, wolves, foxes, wild boars, and badgers were studied. Muscle tissue samples from spontaneously infected wild animals were collected. The digestion method in “GASTROS-2M” was used to isolate Trichinella spp. from animal muscles. The species of the parasite was determined by a polymerase chain reaction for 5S spacer of Trichinella ribosomal DNA with subsequent sequencing by Senger. Statistical analysis methods were performed for average value in Microsoft Excel 2010. Results: The results of the research showed that among 155 animals wolves (20.4%) and foxes (26.7%) were the most infected with invasive Trichinella larvae. The invasion intensity was 503.6% in foxes and 289.7% in wolves. However, badgers (164%), wild boars (0%), and corsacs (0%) presented lower invasion levels. Using specific primers, larvae samples were identified as Trichinella nativa. Conclusion: The results of monitoring revealed the spread of trichinosis among wild animals: wolves, foxes, badgers. The Karaganda, Kostanay, Western Kazakhstan, and Akmola regions had the largest distribution of wild animals infected with trichinellosis. In total, 20% of the 155 studied animals were infected. The greatest invasion intensity was typical for wolves, foxes and badgers. It is necessary to monitor the spread of trichinellosis among wild carnivores to control the epidemiological situation and reduce the level of spontaneous infection among animals. Regular monitoring of habitats and carnivores must be conducted within the country and in the border areas. Keywords: distribution, intensity of infection, trichinellosis, wild carnivores.

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Trichinella infections in animals and humans of Iran and Turkey

Cited by 5 publications

References 44 publications

First Identification and Molecular Characterization of Trichinella britovi (Nematoda: Trichinellidae) from the Pine Marten (Martes martes Linnaeus, 1758) in Romania

First Identification and Molecular Characterization of Trichinella britovi (Nematoda: Trichinellidae) from the Pine Marten (Martes martes Linnaeus, 1758) in Romania

Genetic identification of Trichinella species found in wild carnivores from the territory of Kazakhstan

Trichinellosis dissemination among wild carnivores in the Republic of Kazakhstan: A 10-year study

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