Prevalence of Linguatula serrata nymphs and gross changes of infected mesenteric lymph nodes in sheep in Urmia, Iran

Tavassoli, Mousa; Tajic, Hosein; Dalir‐Naghadeh, Bahram; Hariri, F.

doi:10.1016/j.smallrumres.2006.08.013

Cited by 38 publications

(33 citation statements)

References 7 publications

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“…In Bursa, Turkey, 20 % of dogs have been found infected (Akyol et al 1995). Many studies were done on prevalence of L. serrata in various domestic ruminants in Iran and other parts of world (Youssefi et al 2012;Mirzaei et al 2011;Yakhchali et al 2009;Tavassoli et al 2007;Tajik et al 2006;Razavi et al 2004). The infected nymphs were obtained from different visceral organs and in most studies MLNs were evaluated because the nodes are first place of infection with L. serrata nymph.…”

Section: Discussionmentioning

confidence: 99%

“…This parasite has been reported in humans in Iran (Hodjati and naghili 1987;Fata et al 1994, Sadjjadi et al 1998Maleky 2001). Several studies have shown the prevalence of L. serrata infection in animals including, dogs (Oryan et al 1997(Oryan et al , 2008Khalil 1970;Tavassoli et al 2000;Meshgi and Asgarian 2003), camels (Mobedi et al 1998;Oryan et al 1993;Tajik et al 2007;Pourjafar et al 2007;Shakerian et al 2008), buffaloes (Sisakumar et al 2005), sheep (Esmail-Nia et al 2000;Shekarforoush et al 2004;Tavassoli et al 2007;Ravindran et al 2008;NourollahiFard et al 2011), cattle (Nourollahi-Fard et al 2010a) and goats (Saiyari et al 1996;Razavi et al 2004;NourollahiFard et al 2010b). …”

Section: Introductionmentioning

confidence: 99%

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Prevalence of Linguatula serrata nymphs in slaughtered sheeps in Isfahan province, southwest of Iran

et al. 2013

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Linguatula serrata, well known as tongue worm; is an aberrant cosmopolitan parasite, which inhabits the carnivorous mammals (especially Canidae) respiratory system. The discharged eggs infect many plant feeder animals including human that produces visceral and nasopharyngeal linguatulosis which is known as Marrara syndrome in man. In current study, the prevalence rate of infection with L. serrata nymphs in mesenteric and mediastinal lymph nodes (MLNs) of slaughtered sheeps was investigated in Esfahan Province, Iran. The MLNs of 506 slaughtered sheeps, including 236 females and 270 males, were examined for L. serrata nymphs by cutting the MLNs longitudinally and then microscopic studies for L. serrata nymphs. Sheeps were categorized into four age groups, including \1 year, 1-2 years, 2-3 years and [3 years. Results showed that 11.66 % of examined sheeps were infected with L. serrata. Age had significant effect on the prevalence rate of this parasite in sheeps (infection in sheeps with [3 years old was more than other groups significantly) and sex had no significant effect on the prevalence rate of this parasite in sheeps. Infection rate in winter was significantly lower than infection rate in spring; but there were no significant differences between the other seasons. As high prevalence rate of infection in sheeps, suggesting possibly similar high rate of infection in other animals and man in the investigated area, which this emphasizes undertaking strict control measures to reduce risk of zoonotic outbreaks. This study was demonstrated infection rate of L. serrata in sheeps in central parts of Iran.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Prevalence of Linguatula serrata nymphs in slaughtered sheeps in Isfahan province, southwest of Iran

et al. 2013

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“…Infections with L. serrata in human cases have been reported from Africa, South America, Southeast Asia and the Middle East (Beaver et al 1984;El-Hassan et al 1991;Lazo et al 1999;Siavashi et al 2002). Several studies have been conducted on the prevalence of L. serrata in dogs (Tavassoli et al 2007;Meshgi and Asgarian 2003;Oryan et al 2008), camels (Oryan et al 1993;Shakerian et al 2008;Haddadzadeh et al 2009), buffaloes (Tajik et al 2008), goats (Saiyari et al 1996;Razavi et al 2004) and sheep Tavassoli et al 2007). The prevalence rates of 44 % in cattle in Urmia slaughterhouse, Iran (Tajik et al 2006), 19 % in cattle of India (Ravindran et al 2008), 29.9 % in goats in Shiraz, Iran ), have been reported from different countries.…”

Section: Discussionmentioning

confidence: 99%

“…It is thought among some women, that consumption of raw or undercooked liver is helpful for growth of the fetus because of its high content of iron and vitamins. Several studies have been conducted on the prevalence rate of L. serrata in dogs (Tavassoli et al 2007;Meshgi and Asgarian 2003), camels (Oryan et al 1993;Shakerian et al 2008;Haddadzadeh et al 2009), buffaloes (Tajik et al 2008), sheep Tavassoli et al 2007) and goats (Saiyari et al 1996;Razavi et al 2004). Human infection with L. serrata has been reported from different parts of the world including tropical regions of North and South America, Europe, Asia, Africa and Australia (Riley et al 1985).…”

Section: Introductionmentioning

confidence: 99%

Occurrence of Linguatula serrata nymphs in cattle slaughtered in Tabriz, Iran

et al. 2013

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The Linguatula serrata is a tongue-shaped parasite that infects carnivores or insectivorous reptile as final and herbivores as intermediate host. The aim of this study was to evaluate the prevalence of nymphal stages of L. serrata in mesenteric nodes (MLN) and mediastinal lymph nodes of cattle slaughtered in Tabriz slaughterhouse, North West of Iran. Mesenteric and mediastinal lymph nodes of 640 cattle of different sex and age were inspected. A digestion method was applied for investigation of samples revealing an infection prevalence of 18.9 %. The MLNs in 97 cattle out of 640 (15.1 %) and the mediastinal lymph nodes in 47 cattle out of 640 (7.3 %) were infected by L. serrata nymphs. The results showed infection rate of mesenteric lymph nodes higher than mediastinal mesenteric lymph nodes (P \ 0.05). The infection rate increased with age (P \ 0.05). Although a significant difference seen in the infection rate between male and female but it was not significant at the same age groups of male and female (P [ 0.05). In addition, there was a significant difference in the infection rate of different seasons (P \ 0.05). Linguatulosis occurs as an endemic zoonosis in the northwest of Iran and has an active transmission life cycle.

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“…Various herbivores serve as the best intermediate hosts for the immature stages of the parasite (Alcala-Canto et al, 2007;Ghorashi et al, 2016). Tavassoli et al (2007b) reported that L. serrata in infected lymph node induce gross and morphological changes. Previously, patholo-gical changes in infected animals were described in sheep (Yakhchali & Tehrani, 2011;Azizi et al, 2015) and goats (Yakhchali & Tehrani, 2013).…”

Section: Introductionmentioning

confidence: 99%

Incidence of Linguatula serrata nymphs and pathological lesions of mesenteric lymph nodes in cattle from Urmia, Iran

Tavassoli¹,

Hobbenaghi²,

Kargozari³

et al. 2018

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SummaryTavassoli, M., R. Hobbenaghi, A. Kargozari & H. Rezaei, 2018. Incidence of Linguatula serrata nymphs and pathological lesions of mesenteric lymph nodes in cattle from Urmia, Iran. Bulg. J. Vet. Med., 21, No 2,[206][207][208][209][210][211] This study was aimed to determine the infection rates of mesenteric lymph nodes (MLNs) with Linguatula serrata nymphs and their pathological lesions. From November 2012 to June 2013, the MLNs of 104 cattle were randomly sampled in Urmia slaughterhouse, northwestern Iran. They were examined macroscopically and histopathologically. The infected and non-infected lymph nodes were processed for histopathology. They were examined under light microscope and observations were recorded. The results indicated that out of 104 sampled cattle, 63 (60.57%) were infected. Macroscopic examination revealed that the infected lymph nodes were swollen and dark, with rubbery consistency, some with subcapsular haemorrhages on cutting. The mean number of counted lymph node follicles in the nodes from healthy cattle at random microscopic levels was 18±2.8 (range 15-23), compared to 48.9±3.7 (range 44-57) in the infected nodes. Because L. serrata is a zoonotic parasite, preventive measures should be adopted to break the parasite's cycle and minimise the risk of infection in both humans and other animals.

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Prevalence of Linguatula serrata nymphs and gross changes of infected mesenteric lymph nodes in sheep in Urmia, Iran

Cited by 38 publications

References 7 publications

Prevalence of Linguatula serrata nymphs in slaughtered sheeps in Isfahan province, southwest of Iran

Prevalence of Linguatula serrata nymphs in slaughtered sheeps in Isfahan province, southwest of Iran

Occurrence of Linguatula serrata nymphs in cattle slaughtered in Tabriz, Iran

Incidence of Linguatula serrata nymphs and pathological lesions of mesenteric lymph nodes in cattle from Urmia, Iran

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