We are currently investigating a series of listeria illnesses that have occurred in Texas over the first several months of this year. The cluster of illnesses appears to be an outbreak–i.e. the illnesses are likely related to the same food source–because the DNA pattern isolated from the stool or blood samples of sickened individuals is indistinguishable. It is not yet known what common food item is responsible for this listeria outbreak.
Notably, listeria monocytogenes, which is the bacteria that causes listeriosis, has caused more than a few recalls and other food safety emergencies this year:
On May 1, Custom Corned Beef, Inc., a Denver, Colo., establishment recalled recalled approximately 460 pounds of fully cooked crumbled pork sausage products that may be contaminated with Listeria monocytogenes,