DIARRHEAL DISEASES NOTES.

DIARRHEAL
DISEASES NOTES BY
ELIASPARAMEDIC.

,• The common feature with these diseases is that the causative
organisms are excreted in the stools of infected persons.
• The portal of entry for these diseases is the mouth
– The causative organisms have to pass through the environment from the
feces of an infected person to the gastro-intestinal tract of a susceptible
person
• Food takes a central position;
– it can be directly or indirectly contaminated via polluted water, dirty hand
contaminated soil, or flies.

,• Oral fecal diseases may be grouped into:
• Diseases transmitted by feces in water
• Diseases transmitted by feces in soil
• Diseases transmitted by direct contact with feces

, Basic definitions related to Diarrhea
diseases
• Contamination: The presence of an infectious agent on a body
surface, on or in clothes, beddings, surgical instruments or
dressings, or other articles or substances including water and foo
• Host: A person or an animal that affords subsistence or lodgemen
to an infectious agent under natural conditions.
• An animal or an organism,or human being that harbours an
infectious agent or disease
• Vector: An insect or any living carrier that transports an infectious
agent from an infected individual or its wastes to a susceptible
individual or its food or immediate surroundings