Timeline of Reported Cases
Posted November 21, 2018 at 5:00 PM ET
People infected with the outbreak strain of Listeria monocytogenes, by date of isolation*
*n=4 for whom information was reported as of November 20, 2018.
Illnesses might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 10 weeks.