Connecticut seafood fans should be wary of certain oysters harvested from Recompense Cove in Freeport, Maine, that may be contaminated with illness-causing bacteria, according to the U.S. Food and Drug Administration.

The oysters, which the FDA recalled on July 25, have been distributed to restaurants and food retailers across the country, including Connecticut, California, Delaware, Florida, Maine, Maryland, Massachusetts, Michigan, Nevada, New Hampshire, New Jersey, New York, Pennsylvania and Vermont, as well as and Ontario, Canada, the FDA said. The FDA warned that the mollusks could've been distributed to other states as well.

The oysters were harvested from Recompense Cove between June 19 and July 16 in harvest areas known as CAS RC2 and CAS RCX, and may be contaminated with Campylobacter bacteria. Oysters contaminated with this bacteria can cause illness if eaten raw, and potentially life-threatening illness in people with compromised immune systems, the FDA said.

Contaminated oysters may look, smell and taste normal, according to the FDA.

The FDA learned of an outbreak of Campylobacter illnesses, or campylobacteriosis, from the Main Department of Marine Resources on July 11.

Restaurants and food retailers are advised not to serve or sell the potentially contaminated oysters, and consumers should not eat these oysters.

Symptoms of Campylobacter illness include potentially bloody diarrhea, fever and stomach cramps. Nausea and vomiting may also occur, according to the FDA.

Anyone who ate oysters and is experiencing symptoms of illness should contact their healthcare provider and report their symptoms to their local health department, the FDA said.