Articles in Press, Accepted Manuscript, Available Online from 13 March 2024
Abstract
Linguatulosis can infect most ruminants and cause accidental infections in humans. 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 explore ...
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Linguatulosis can infect most ruminants and cause accidental infections in humans. 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 explore the clinical and pathologic findings of pulmonary linguatulosis in a rabbit. The most striking clinical findings in the deceased rabbits were wheezing and labored breathing. Grossly, the most prominent morphological changes in the lungs were well-circumscribed, flat or slightly raised, solitary grayish-white nodular lesions and consolidated areas. The developmental forms of parasite with characteristically tongue-shaped were observed on cut surface of the lung. Histopathologically, the most striking morphological changes in the lung parenchyma were diffuse thickening of the interalveolar septum, fibrinoid necrotic vasculitis, hypertrophy of the medial smooth muscle cells of the arteries, alveolar emphysema, longitudinal and transverse sections of L. serrata nymphs and extramedullary hematopoietic foci (megakaryocytes). Morphologic appearance of the nymphs showed multiple transverse grooves, saw-like cuticles, peribuccal hooks and acidophilic glands. In conclusion, these findings reveal the etiopathological diagnosis of Linguatulosis and suggest that the lungs might be a target organ in addition to the liver and lymph nodes.
Linguatula serrata is one of well-known members of Pentastomida which infects both humans and animals. The aim of this study was to evaluate the prevalence of L. serrata in mesenteric lymph nodes, livers and lungs of goats slaughtered in Tabriz area, Iran. Mesenteric lymph nodes (MLNs), livers and lungs ...
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Linguatula serrata is one of well-known members of Pentastomida which infects both humans and animals. The aim of this study was to evaluate the prevalence of L. serrata in mesenteric lymph nodes, livers and lungs of goats slaughtered in Tabriz area, Iran. Mesenteric lymph nodes (MLNs), livers and lungs of 280 goats slaughtered in Tabriz, North-west of Iran were investigated for nymphs of L. serrata from September 2009 to September 2010. The organs were examined macroscopically and then a tissue digestion method was also done for investigation of liver and lung of the goats that were infected MLN. The liver and lung samples were mostly taken from the condemned and rejected part of organs. The infection rate of L. serrata nymphs in MLNs, livers and lungs was 27.1 %, 2.8 % and 2.8 % respectively. The number of isolated nymph in infected lymph nodes varied from 1 to 22 with a mean of 7. Only one nymph was isolated from each infected livers and lungs. The infection rate increased with age (P < 0.05). No significant difference in different sex groups and seasons was observed (P > 0.05). Linguatula infection occurs as an endemic zoonosis in the study area and has an active transmission life cycle.
