The Oregon Health Authority has announced the investigation of a cluster of three Campylobacter cases among Oregon residents who consumed raw oysters. The oysters came from two different markets in Lane and Coos counties and were harvested from Coos Bay Oyster Company of Charleston, OR. Campylobacter is an organism that can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems. The three Oregon patients who became ill with Campylobacter coli (a less-common species of Campylobacter) reported illness after eating raw oysters between Jan. 15-20, 2014. All patients were males between 50-75 years of age. Of the three patients, two were hospitalized and are reportedly recovering well. On Jan. 30, Coos Bay Oyster Company recalled Plastic Tubs (half-gallon, quart, pint, half-pint), Coos Bay Oyster Co., Raw/Ready-to-eat Shucked Oysters, with sell-by dates from Jan. 15 to Feb. 17, 2014, because they have the potential to be contaminated with Campylobacter. On Jan. 31, the recall was expanded to include all of its shellstock oysters in red onion sacks containing five (5) dozen shellstock oysters (various sizes) with a Coos Bay Oyster Co. label and shellstock tags with various harvest dates (Dec. 2013-Jan. 2014). The recall is the result of an epidemiologic investigation of a Campylobacter outbreak in Oregon. There have been three (3) confirmed reported cases of Campylobacter illness related with the consumption of raw shucked oysters to date. The oysters were distributed through wholesale dealers and retail stores in Oregon and California. Coos Bay Oyster Company has ceased production and distribution of the product as the Oregon Department of Agriculture (ODA) and the company continue investigating the cause of the problem. Healthy persons infected with Campylobacter often experience diarrhea, headache and body ache, cramping, abdominal pain, and fever within two to five days after exposure to the organism. The diarrhea may be bloody and can be accompanied by nausea and vomiting. The illness typically lasts one week, and some infected persons do not have any symptoms. In persons with compromised immune systems, Campylobacter occasionally spreads to the bloodstream and causes a serious life-threatening infection.