Public health officials report 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 like imported items.
Symptoms can be prolonged.
Some patients experience intense diarrhea.
At least 32 states saw cases.
New Hampshire has two sick people.
Exact food source still unknown.
People become infected from tainted food or water.
No common source has been identified yet.