Prevalence of Linguatula serrata nymphs in slaughtered goats in Isfahan province

Authors

1 Department of Pathobiology, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran

2 Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran

3 Graduated from the Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran

Abstract

BACKGROUND: Linguatula serrata, a tongue worm, is an
aberrant cosmopolitan parasite, which inhabits the canine
respiratory system (final host). The discharged eggs infect many
plant feeder, including ruminants and human being, that produce
visceral and nasopharyngeal linguatulosis which is known as
Marrara syndrome in man. OBJECTIVES:In the current study, the
prevalence rate of infection with L. serrata nymphs in
mesenteric and mediastinal lymph nodes (MLNs) of slaughtered
goats was investigated by cutting in MLNs and observing them
in Isfahan Province, Iran. METHODS: The MLNs of 620
slaughtered goats, including 197 females and 423 males, after the
preparation of the lymph nodes, were examined for L. serrata
nymphs by cutting them longitudinally and testing them by using
a dissecting microscope for L. serrata nymphs. Then, in the
suspected cases, the samples were digested by pepsin and
hydrochloric acid and were examined for presence of L. serrata
nymphs. Goats were categorized into four age groups, including
< 1.5 year, 1.5 to 2.5 years, 2.5 to 3.5 years, and > 3.5 years.
RESULTS:The results showed that 54.35% of the examined goats
were infected with L. serrata. Sex had no significant effect on the
prevalence rate of this parasite in goats. CONCLUSIONS: Ahigh
prevalence rate of infection in goats suggests a possible similar
high rate of infection in other animals and man in the investigated
area, which emphasizes undertaking strict control measures to
reduce the risk of zoonotic outbreaks.

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