Prevalence and associated risk factors of Linguatula serrata infection in definitive and intermediate hosts in Iran and other countries: A systematic review

Hajipour, Nasser; Tavassoli, Mousa

doi:10.1016/j.vprsr.2019.100288

Cited by 14 publications

(22 citation statements)

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“…The diagnostic method of Linguatulosis in slaughterhouses relies on the macroscopic visualisation of compatible lesions with occasional identification of nymphs. Is important to consider the low size of the lesion and nymphs, this infection is hard to detect during the routine examination, especially when this is not a mandatory report disease (Ministerio de Salud 2002, Carrillo et al 2017, Hajipour and Tavassoli 2019. The lesions without the presence of nymphs (n=15) were described and classified in 4 groups of pentastomid granuloma.…”

Section: Resultsmentioning

confidence: 99%

“…The prevalence differs among animals depending on the location, probably climatic factors affect the survival of the eggs, temperature and humidity can play important roles in the epidemiology. The prevalence of L. serrata is higher in goats in comparison to other animals in Iran, which can be an important risk factor for human infestation (Hajipour and Tavassoli 2019).…”

Section: Introductionmentioning

confidence: 97%

“…The diagnosis of visceral Linguatulosis is performed by visual identification of macroscopically compatible lesions and the detection of the nymph. Thus, the main affected organs are liver and mesenteric lymph nodes (Yakhchali and Tehrani 2013, Azizi et al 2015, Hajipour and Tavassoli 2019. The macroscopic lesions compatible correspond to well delimited, flat or slightly elevated, usually solitary greyish-white nodules of 2 to 4 mm diameter, located in the subcapsular area of the liver.…”

Section: Introductionmentioning

confidence: 99%

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Histopathological lesions compatible with nymphs of Linguatula serrata in bovine liver

Muñoz¹,

Parraguez

Marambio³

et al. 2020

Austral j. vet. sci.

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Linguatula serrata is the causative parasite of Linguatulosis, a disease that not only produces economic losses in cattle but also represents a public health risk due to its zoonotic nature. This study aimed to microscopically characterise the compatible lesions produced by this parasite in bovine liver collected at a slaughterhouse in the city of Curicó, Chile. Histologic compatible lesions with Linguatulosis were observed in 18 out of 269 livers. Furthermore, nymphs were visualised in 3 cases, allowing an etiologic diagnosis. Microscopic lesions containing nymphs demonstrated two patterns of inflammatory reactions, one pattern with a predominance of eosinophils, accompanied by lymphocytes and some macrophages, and another pattern with a predominance of lymphocytes and plasma cells with some macrophages. A microscopic characterisation was performed in compatible lesions without nymphs (n=15), defining 4 types of granulomas attributable to visceral Linguatulosis, according to the presence and features of cells at the centre of the lesion, the presence of presumably degenerated nymphal structures, location of inflammatory infiltrate, as well as location and amount of surrounding fibrous tissue. These lesions can concede a presumptive microscopic diagnosis. Also, different microscopic features of granulomas compatible with Linguatulosis analysed in this study suggest a temporal evolution of the lesions. The description of lesions generates a better understanding of the host-parasite interaction of this agent which has importance in both animal productivity and public health.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Histopathological lesions compatible with nymphs of Linguatula serrata in bovine liver

Muñoz¹,

Parraguez

Marambio³

et al. 2020

Austral j. vet. sci.

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“…Then, the larvae hatch from the eggs and migrate mainly to mesenteric lymph nodes (MLNs) and other visceral organs (such as liver, lung, spleen, heart, etc.). The parasite can be transferred to the final host through consumption of meat or viscera of infected intermediate host ( Soulsby, 1982 ; Oryan et al, 2008 ; Akhondzadeh Basti and Hajimohammadi, 2011 ; Hajipour and Tavassoli, 2019 ). Parasites entered in intermediate host cause pathological lesions and signs.…”

Section: Introductionmentioning

confidence: 99%

“…serrata nymphs (adult stage) found in intermediate host's organs and resulting in nasopharyngeal linguatulosis with signs of pharyngitis, salivation, dysphagia, and cough which all together cause type I hypersensitivity known as Halzoun syndrome. In case of visceral linguatulosis, the disease remains asymptomatic ( Hajipour and Tavassoli, 2019 ; Shakerian et al, 2008 ; Meshgi and Asgarian, 2003 ). Detection of parasite nymphs in intermediate host is performed by biopsy, exploratory laparotomy, postmortem examination, and subsequent histopathology ( Hendrix, 1998 ).…”

Section: Introductionmentioning

confidence: 99%

Status of Linguatula serrata infection in livestock: A systematic review with meta-analysis in Iran

Tabaripour

Shokri

Teshnizi

et al. 2019

Parasite Epidemiology and Control

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Objectives The present systematic review attempted to determine the prevalence of Linguatula serrata ( L. serrata ) infection among Iranian livestock. The L. serrata known as tongue worm belongs to the phylum pentastomida and lives in upper respiratory system and nasal airways of carnivores. Herbivores and other ruminants are intermediate hosts. Methods MEDLINE, Embase, Web of Science, Google Scholar, and the Cochrane Library were searched from Nov 1996 to 22 Apr 2019 by searching terms including “ Linguatula serrata ”, “linguatulosis”, “pentastomida”, “bovine”, “cattle”, “cow”, “buffalo”, “sheep”, “ovine”, “goat”, “camel”, “Iran”, and “prevalence” alone or in combination. The search was conducted in Persian databases of Magiran, Iran doc, Barakatkns (Iran medex) and Scientific Information Database (SID) with the same keywords. After reviewing the full texts of 133 published studies, 50 studies had the eligibility criteria to enter our review. Results By random effects model analysis, the pooled prevalence of linguatulosis was 25% (95%CI: 18.0–33.0, I 2 = 98.67 % , P < 0.001) in goats; 15.0% (95%CI: 10.0–20.0, I 2 = 97.95 % , P < 0.001) in sheep; 12.0% (95%CI: 7.0–18.0, I 2 = 98.05 % , P < 0.001) in cattle; 7% (95%CI: 2.0–16.0, I 2 = 97.52%) in buffalos and 11.0% (95%CI: 6.0–16.0%, I 2 = 96.26 % , P < 0.001) in camels. The overall prevalence in livestock was estimated to be 25%. The highest infection rate was recorded in West Azerbaijan Province (68%) and the lowest rate was in Khuzestan Province (0.23%) (P < 0.05). Conclusions We concluded that the high prevalence of L. serrata infection in livestock (mainly ovine linguatulosis) show the endemic status of linguatulosis in several parts of Iran and will pose a risk for inhabitants. Control strategies to reduce the parasite burden among these animals are needed.

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Prevalence and risk factors associated with amphistome parasites in cattle in Iran

Hajipour

Mirshekar

Hajibemani

et al. 2020

Veterinary Medicine & Sci

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Amphistomiasis, a neglected trematode infection of ruminants, has recently come up as an important reason for economic losses. The aim of this study was to determine the prevalence of bovine amphistomiasis and associated risk factors such as: age, gender, breed, season, water source, pastureland and grazing system. Between January 2016 and 2017, a total of 1,000 faecal samples and 1,000 rumens of cattle were collected from slaughterhouse of Zabol, Iran ante‐mortem and post‐mortem, respectively, and examined. The overall prevalence was 34.6% and 19.5% in terms of amphistome adults and eggs respectively. The identified amphistome species and their prevalence were Paramphistomumcervi (13.3%), Cotylophoroncotylophorum (19.5%), Gastrothylaxcrumenifer (5.9%) and Carmyeriusspatiosus (2.7%). The correlation between prevalence and season, age, breed, water source, pastureland and grazing system was significant (p < .0001). The presented information about the prevalence of amphistomes of cattle and individual and management risk factors can be used to design appropriate control measures.

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Prevalence and associated risk factors of Linguatula serrata infection in definitive and intermediate hosts in Iran and other countries: A systematic review

Cited by 14 publications

References 58 publications

Histopathological lesions compatible with nymphs of Linguatula serrata in bovine liver

Histopathological lesions compatible with nymphs of Linguatula serrata in bovine liver

Status of Linguatula serrata infection in livestock: A systematic review with meta-analysis in Iran

Prevalence and risk factors associated with amphistome parasites in cattle in Iran

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