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Shigella

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 Shigella

S. sonnei

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S. flexneri

S. boydii

S. dysenteriae

The disease occurs only in humans and non-human primates

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Shigellosis general characteristics

Gram-negative

Growing in aerobic and anaerobic conditions

Do not tolerate acidic

Demanding fairly moist growing environment

The dying easily if heated,

Easily destroyed outside the body

Are not competitive with other foods

with the bacteria

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The clinical picture

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The cause of the symptoms

Shiga toxin mainly (there are others)

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Shiga toxin causes the intestine wall of the ulcer,

which results in bloody diarrhea

effects on the nervous system

similar to the toxin than the EHEC strains

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Risk Groups

children

elderly

immunocompromised

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Infective dose

S. dysenteriae 10 pieces can cause disease

In other Shigellosis needed a few hundred

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Shigellosis is a general dangerous communicable disease

Public Health Institute (now THL) Register of Infectious Diseases 2002

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Shigellaepidemiat in Finland

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The most common broker foods

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Shigellatapaukset Finland, 1995-2001

71-223 cases a year 

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Mostly S.  sonnei

The infection is usually acquired abroad

Sub-tropical or tropical zones

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Shigella abroad

about 1 million children die from Shigella infections each year 

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Participation in food

 Number of shigellosis in foods is usually low

An increase has been hiennonnetussa parsley

room temperature

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Factors that could lead to the infection

Shigella is always derived from Shigella to secrete human or 

monkey stool

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Poor hand hygiene

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Factors that could lead to the infection

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