Public health officials state an outbreak of cyclosporiasis sickened at least 1,700 people.
The illness is caused by a parasite.
More than 800 cases traced back to food including imported items.
Symptoms persist for days.
Some patients experience severe diarrhea.
At least 32 states saw cases.
New Hampshire has two sick people.
Exact food source has not been identified.
People contract it from tainted food or water.
No common source has been pinpointed yet.