Infected Hydatid Cysts Bacteria in Slaughtered Livestock and Their Effects on Protoscoleces Degeneration
نویسندگان
چکیده
BACKGROUND The protoscoleces of fertile hydatid cysts are considered as major risks in surgery and producing secondary cysts if rupture the cyst during operation and, cause infecting the dogs with adult worm if eaten by this animal. Bacterial infection of the hydatid fluid can lead to sterilization of the cyst. OBJECTIVES The aim of this study was to determine the bacterial infection rate of livestock hydatid cysts in Hamedan, Iran, and test the isolated bacteria effects on viable protoscoleces, in vitro. MATERIALS AND METHODS A total of 5709 slaughtered livestock were inspected to detect the presence of hydatid cysts. The hydatid fluid of all cysts was cultured separately to isolate and identify the bacteria. The effect of isolated bacteria was tested on viable protoscoleces in culture tubes, in vitro. The culture tubes were observed and examined under a light microscope every two hours for 24 hours, and then, after 36 and 48 hours. RESULTS Infected cysts were found in 74% of animals in Hamedan (46% were calcified and the bacteria was isolated from 52%) and 62% in Borujerd. The isolated bacteria in the infected cysts were as follows: Escherichia coli, E. blattae, Klebsiella pnoumoniae, Proteus mirabilis, Enterobacter aerogenes, coagulase-positive and coagulase-negative Staphylococci, Pseudomonas aeruginosa and Edwardsiella tarda. The protoscoleces incubated with the isolated bacteria totally degenerated, but 55% of the protoscoleces in the control groups were intact and viable even after one week. CONCLUSIONS This study indicated a high percentage of cysts bacterial infections in two provinces of Iran. The common isolated bacteria were E. coli and Klebsiella. The isolated bacteria degenerated the protoscoleces during short-time incubation, in vitro.
منابع مشابه
Falah M1, Kavand A2, Yousefi Mashouf R3 1. Professor, Department of Parasitology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran 2. MSc in Parasitology, Boroujerd Social Security Organization, Boroujerd, Iran 3. Associate Professor, Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran Abstract Background: Hydatid cy...
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Introduction: To date, surgery has been the treatment of choice for hydatid cyst, with regard to danger of leakage of hydatid cyst contents into viscera and production of secondary cysts, after spread of protoscolices. Different scolicidal agents get injected into cyst for preventing the secondary cyst production, which may cause different side effects in host, especially in the surrounding tis...
متن کاملاثرات اسکولکس کشی نانوذرات طلا بر پروتواسکولکس های کیست هیداتید در شرایط آزمایشگاهی
Background & Aims: Hydatid disease is a parasitic infection caused by the larval stage of Echinococcus granulosus. Hydatidosis is one of the zoonotic diseases that cause serious problems for human health, as well as major economic losses for livestock industry. Different chemicals have been used in the treatment of cysts. The development of new scolicidal agents with low side effects and m...
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Background: Echinococcus granulosus is one of the most important zoonotic parasites having worldwide distribution. The major purpose of this study was to determine prevalence, fertility, and viability rates of Hydatid Cysts (HCs) in surgical patients and slaughtered small ruminants in Ahvaz, Iran. Methods: Liver and lungs of the slaughtered sheep (n=1402) and goats (n=3251) in Ahvaz, Iran were...
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Proper disposal of carcasses and offal after home slaughter is difficult in poor and remote communities and therefore dogs readily have access to hydatid cysts containing offal from livestock, thus completing the parasite cycle of Echinococcus granulosus and putting communities at risk of cystic echinococcosis. Boiling livers and lungs which contain hydatid cysts could be a simple, efficient an...
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