After the sixth case was reported in April 2010, MDHSS issued a health advisory on April 30 to enhance health-care provider awareness about paragonimiasis and to request voluntary reporting of cases. The WUSM article ( 2) and reports of two paragonimiasis cases in October 2009 prompted MDHSS, the Missouri Department of Natural Resources, and the Missouri Division of Tourism to distribute posters warning against eating raw or undercooked crayfish to campers and canoe outfitters in November 2009. Health-care providers should consider paragonimiasis when examining patients with unexplained fever, cough, eosinophilia, and pleural effusion or other chest radiographic abnormalities and should ask those patients whether they have eaten raw or undercooked crayfish. All had eaten raw or undercooked crayfish from rivers in Missouri while on canoeing or camping trips within 4 months of illness onset. These nine patients, aged 10−32 years, had fever, cough, pleural effusion, and eosinophilia. During September 2009-September 2010, six additional cases were diagnosed in Missouri. Louis published details of three paragonimiasis cases diagnosed since July 2006 in persons who had eaten raw crayfish from rivers in Missouri ( 2), prompting the Missouri Department of Health and Senior Services (MDHSS), CDC, and WUSM to collaborate in paragonimiasis surveillance and prevention. In September 2009, physicians from the Washington University School of Medicine (WUSM) in St. Paragonimiasis is not a nationally notifiable condition. In North America, Paragonimus kellicotti causes infections among dogs, cats, and wild carnivores, but rarely infects humans ( 1). Paragonimiasis most frequently involves the lungs, but can affect other organs, including the brain and skin. Humans become infected by eating raw or undercooked crayfish (also known as crawfish and crawdads) or freshwater crabs that harbor the parasites.
Paragonimiasis is a parasitic disease caused by Paragonimus trematodes, commonly known as lung flukes.
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