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Carrier
A carrier is a special type of reservoir. Generally a carrier is one that has recovered from the disease but continues to shed the disease agents. Thus persons who have recovered from typhoid fever or amoebiasis are usually carriers for many weeks after disappearance of the disease symptoms. Their faces may spread the disease through contaminated food or water. Animals may also he reservoirs of disease. Domestic house cats without showing symptom may transmit toxoplasmosis, caused by Toxoplasma gondii to humans.