Region Incubation Period Period of communicability Modes of Transmission Sign and Symptoms Control Measures &/or Public Health Response Reference
Whole Body 5-25 days, Usually 4-10 days Entire period of infection, after months. Ingestion of focally contaminated foods or water of from person person by focal oral route. Diarrhoca, abdominal cramps greasy stools, bloody gas. Handwashing and improved personal imgenire exclude from day care or food handhiy until asymptomatic or at the discretion of local health department. Stanley L.erlandsen; ernest A. Meyer (1March 1984) Giardia and Giardeasis, Biology ,pathogenesis and opidemiology.