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

Medicine

Description: 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 well. In this particular lecture you can know about Cholera, Epidemiology, Agent, Factors, Host, Environmental, Transmission, Control, Prevention
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University: Allahabad University
Subject: Medicine
Upload date: 19/10/2012
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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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