Public health officials say an outbreak of cyclosporiasis sickened at least 1,700 people.
The illness is caused by a parasite.
More than 800 cases were linked to food like raw vegetables.
Symptoms persist for days.
Some patients suffer from severe diarrhea.
At least 32 states saw cases.
New Hampshire has two sick people.
Exact food source has not been identified.
People catch it from tainted food or water.
No common source has been pinpointed yet.