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Today’s topic: Listeria

Action requested: Be alert to potential listeriosis, especially among pregnant women.


Snoqualmie Gourmet Ice Cream, Inc. has issued a voluntary recall of all ice cream, gelato, custard and sorbet for all flavors and container sizes produced on or after January 1, 2014 until December 15, 2014 because these products might be contaminated with Listeria monocytogenesL. monocytogenes can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems. Although healthy individuals may suffer only short-term symptoms such as high fever, severe headache, stiffness, nausea, abdominal pain and diarrhea, Listeria infection can cause miscarriages and stillbirths among pregnant women.  Testing and treatment are generally indicated only when invasive disease is suspected, although experts differ on the management of pregnant women with only mild symptoms.


  1. Advise asymptomatic patients who report consuming any of the products listed above to seek care if symptoms develop within two months of eating the recalled product.
  2. Ask patients at high risk for complications (notably pregnant women) who present symptoms consistent with Listeriosis about consumption of the products listed above.
  3. If invasive Listeriosis is suspected, submit blood or cerebrospinal fluid (not stool) for laboratory testing (note that laboratories will submit Listeria isolates to the Public Health Laboratory for confirmation & typing).
  4. Report Listeriosis within 24 hours to the Health District at 425-339-5278.