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Who is Commonly Affected?
Any personnel coming in contact with the causative agents is likely to be affected with the Cholera.

All age groups & both sexes are affected (except exclusively breastfed babies).

Cases are being reported from urban & rural area. The vibrio is destroyed in an acidity of pH 5 or lower. Conditions that reduce gastric acidity may influence individual susceptibility Movement of population (e.g. pilgrimages, marriages, fairs and festivals) result in increased risk of exposure to infection.

The incidence of cholera tends to be highest in the lower socio economic groups and this is due to poor hygiene.

Causative Factors of Cholera
Infective Material
The immediate sources of infection are the stools and vomit of carriers.

Period of Communicability
A case of cholera is infectious for a period of about 7 to 10 days. Convalescent carriers remain infectious for about two to three weeks.

Carriers in Cholera
Chronic Carriers
A chronic carrier state occurs infrequently.

Host Factors of Cholera
Age and Sex
Cholera affects all ages and people of both sexes.

Population Mobility
Movement of population (e.g. pilgrimages, marriages, fairs and festivals) results in an increased risk of exposure to the infection.

Economic Status
The incidence of cholera tends to be the highest in the lower socio–economic groups, and this is attributable mainly to poor hygiene.