Key points
CDC and public health officials in several states are investigating a multistate outbreak of Listeria monocytogenes infections linked to recalled Yu Shang Food ready-to-eat meat and poultry products. If you have any of these recalled products in your home, throw them out or return them to the store.
When people got sick
This chart shows when the 19 people in this Listeria outbreak got sick.
Recent illnesses may not yet be reported as it usually takes 3 to 4 weeks to determine if a sick person is part of an outbreak. The true number of sick people in this outbreak is also likely higher than the number reported. This is because some people recover without medical care and are not tested for Listeria.