Spinach Recalled , After Testing Positive for Listeria.<br />Over 40 spinach products are being recalled after testing positive for the bacterial illness, according to federal health officials. .<br />The recall for "Fresh Spinach" was issued by <br />Solata Foods LLC in New York, Fox News reports. .<br />The spinach was tested by the New York State Department <br />of Agriculture and Market Food Inspectors.<br />Listeria was found in a "9-ounce package of Bogopa fresh spinach," Fox News reports. .<br />Production of the product has been halted.<br />Consumers are being advised to <br />return the affected product for a refund. .<br />No illnesses have been reported yet.<br />People who consume listeria can <br />develop listeriosis, which ranges in <br />severity and can last up to several weeks.<br />Symptoms include "fever, muscle aches, nausea, vomiting, and diarrhea," Fox News reports.<br />Serious cases can result in "headache, stiff neck, confusion, loss of balance and convulsions," Fox News reports.<br />The bacterial infection can be fatal in <br />children and other susceptible people.