Cholera - Community Medicine - Lecture Slides, Slides for Medicine. Allahabad University
emee
emee19 October 2012

Cholera - Community Medicine - Lecture Slides, Slides for Medicine. Allahabad University

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Medical science is vast field. When we talk about word medicine, we dive into sea of disease details. These lecture slides are not for a medical student only, but these are useful to everyone for general knowledge as wel...
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Cholera

Cholera

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Cholera and Epidemiology

Water pump in

memory of John

Snow

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Epidemiology

 Cholera is an acute diarrhoeal disease

caused by V. cholerae

 It is seen in many countries of the world

mainly the poor third world countries

 In Libya there has been no epidemic since

1970

 Cholera is no longer the dreaded disease of

the past because we can prevent deaths with

Oral Rehydration Salt solution

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Agent factors

 Agent – V cholerae (mainly El Tor biotype)

 The bacteria causes a toxin, which acts on

the intestinal mucosa causing severe

diarrhea

 Reservoir of infection – Man (case or carrier)

 Infective material – stools and vomit/vomitus

 Infective period – a case of cholera is

infectious for 7-10 days

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Vibrio cholerae

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Host factors

 Age – can affect any age

 Cause severe morbidity and mortality

 Sex – affects both sexes

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A Cholera

patient in

Bangladesh

(A scene

from 1970)

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Environmental factors

 Mode of transmission

 Water is the most important source of infection

 Food also may be source of infection

 Direct contact through contaminated fingers

 Incubation period

 1-5 days

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Control of Cholera

 Primary prevention

 Health education

 Improvement in sanitation

 Avoid close contact with the patients

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Secondary prevention

 Early diagnosis and Treatment

 Rehydration

 Oral with Oral Rehydration Salt solution

 Parenteral with Ringer lactacte solution in severe cases

 Antibiotics – Tetracycline

 Isolate the patient to prevent spread of

disease

 Disinfect all infected material to prevent

spread of disease

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