A case of cysticercus cellulosae in a pig
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Transcript of A case of cysticercus cellulosae in a pig
A CASE OF CYSTICERCUS
CELLULOSAE IN A PIG AT THE
KUMASI ABATTOIR ON 3RD
NOVEMBER, 2014PRESENTED BY
ERNEST BOATENG11/16/2014SVM-KNUST
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INTRODUCTION
Cysticercus is the name of the larva or cyst which forms part of the life cycle of the tapeworm
• Cysticercus cellulosae is the larval stage (cysticercoid) of Taenia solium, a human tapeworm parasite that has swine and wild boars as intermediate hosts
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INTRODUCTION CONTD.
• The disease caused by this and other cysticercoids is called cysticercosis
• Cysticercus cellulosae occurs worldwide, mainly in poorly developed rural regions with insufficient sanitary conditions
• Other livestock are also infested with different cysticercoids eg. cysticercus bovis in cattle
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LIFE CYCLE
• As all tapeworms, Taenia solium has an indirect life cycle, with humans as final hosts, and swine and wild boars as intermediate hosts
• Segments of the tapeworm in people are passed out in the feces
• They contain eggs which are eaten by the pig
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LIFE CYCLE CONTD.
• The cysticercus develops in the skeletal or cardiac muscles of the pig and the cycle is completed by the human eating inadequately cooked infected pork.
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LIFE CYCLE CONTD.
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WAYS PIGS GET INFECTED
• Ingesting food or water contaminated with eggs or gravid segments of Taenia solium
• Contamination of pig feed can occur through undue defecation of humans in the pastures or stables
• Indirectly through irrigation with contaminated human sewage
• Using contaminated human feces as fertilizers
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PIG EATING HUMAN EXCRETA
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CLINICALS SIGNS
• Cysticercus cellulosae is not pathogenic for swine and usually the infection causes no clinical signs
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DIAGNOSIS
• Cysticercus cellulosae are identified at meat inspection
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DIFFERENTIAL DIAGNOSIS
• Myositis
• Abscess and granuloma caused injection
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TREATMENT
• No highly effective compounds are available for treatment in the pig
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MANAGEMENT CONTROL AND
PREVENTION• This is achieved by preventing pig access to
human feces
• By meat inspection and the burning of infested carcasses
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ARE INFECTEDPIGS CONTAGIOUS TO
HUMANS?• Yes
• Humans can become infected with Taeniasolium tapeworms after eating raw or insufficiently cooked pork or other tissues from infested swine
• Simple contact with infested pigs or their feces is not contagious
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ORIGIN OF THE PIG
• From the Northern part of Ghana
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PREVALENCE IN GHANA
• This condition is very common in the northern part of Ghana due to the system of management of pigs
• In 2010, Dr. Paul Poku did a survey in the Jirapa district
• 344 pigs were used and 11.1% tested positive
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CYSTICERCUS CELLULOSAE AT MEAT
INSPECTION
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CYSTS IN THE THIGH MUSCLE
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CYSTS IN THE TRICEPS
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GENERAL MUSCLE CYST INFESTATION
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CLASSICAL CYSTS IN THE HEART
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JUDGEMENT
• The whole carcass together with the diaphragm and the heart were condemned
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DISCUSSION
• Sometimes, when the cyst is localized it is frozen for 2 weeks to render the cyst inactive and also make pork consumable.
• In this case the cyst infestation was heavy in the muscle hence the total condemnation
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