Key points
CDC and public health officials in several states are investigating a multistate outbreak of E. coli infections linked to frozen blueberries. If you have recalled blueberries in your home, throw them out or return them to the store.
When people got sick
This chart shows when the 12 people in this E. coli 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 much higher than the number reported. This is because many people recover without medical care and are not tested for E. coli.