MANCHESTER, N.H. —

New Hampshire health officials say four more people have gotten sick from Giardia after drinking water from a natural spring in Bethlehem, bringing the total to 19.

State testing detected both Giardia and E. coli in the water on Old Franconia Road.

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Giardia infections are caused by a microscopic parasite.

Officials are urging anyone with stored water from the spring to throw it out or boil it before use.

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