Cholera is caused by
the bacterium Vibrio cholerae.
causative organism of cholera is a bacterium called Vibrio cholerae
. Cholera is transmitted by drinking water or
eating food contaminated with the cholera bacterium.
undercooked seafood may be a source of infection in areas where cholera is
prevalent Floodwaters can carry V.
and contaminate drinking water supplies.
disease is not likely to spread directly from one person to another; therefore,
casual contact with an infected person is not a risk for becoming ill with
the organisms are taken into the body, they pass the acid barrier of the stomach
and begin to multiply in the alkaline environment of the small intestine. The
bacteria attach themselves to the microvilli of the epithelial cells of the
intestinal tract where they multiply and produce a potent ‘enterotoxin
’ known as ‘cholera toxin’. Cholera toxin is responsible
for increased secretion of water and electrolytes in stools from the intestines
leading to dehydration, shock, acidosis and death.