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Acute Communicable Disease Control

    

Acute Communicable Disease Control


Contact Information
County of Los Angeles
Department of Public Health
Acute Communicable Disease Control
313 N. Figueroa Street, Room 212
Los Angeles, CA 90012
Phone: (213) 240-7941
Fax: (213) 482-4856
E-Mail:acdc2@ph.lacounty.gov
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Acute Communicable Disease Control
 Giardiasis
Click for View of Giardiasis Life Cycle

Giardiasis is an intestinal infection caused by the zoonotic protozoan parasite Giardia intestinalis (previously G. lamblia). Giardia cysts shed in animal or human feces may contaminate food or drinking water or be transferred on hands or fomites; recreational waters such as lakes and pools may also serve as vehicles of transmission. Incubation can range from 325 days or longer, but the median incubation time is 710 days. While usually asymptomatic, symptoms can include sulfurous burps, chronic diarrhea, frequent loose and pale greasy stools, bloating, cramps, fatigue, and weight loss. Complications are rare, but may include malabsorption of fats and fatsoluble vitamins. Children in day care represent a reservoir of disease in developed countries. There is no vaccine.


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