Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) One person has died and 11 others are hospitalized after eating packaged salads linked to a listeria outbreak. The Centers for Disease Control and Prevention said Friday that the salads were sold under a variety of names and came from a processing facility in Springfield, Ohio, run by Dole. The dozen who were hospitalized come from six states -- Massachusetts, Michigan, New Jersey, New York, Pennsylvania and Indiana. The fatality was in Michigan. Reports about these infections started coming in July. An investigation began in September, the CDC said, but the source of the infections was unknown until this month when lab tests confirmed listeria in salads collected from the Springfield facility.Twelve people hospitalized, with one person dying from a listeria infection tied to packaged saladDole shuts down plant that made salads and has pulled all products made from that plant 
 Question:The _ estimates there are about 1,600 illnesses and 260 deaths per year due to listeriosis infections.

CDC