On October 23rd, McDonald's (MCD. US) fell nearly 10% after hours and is now down nearly 6%. The reason is that it is embroiled in a severe E. coli infection incident in the United States.
On October 22nd local time, the Centers for Disease Control and Prevention (CDC) in the United States warned that McDonald's "Quarter Pound Hamburgers" have caused E. coli related illnesses in multiple states.
The Centers for Disease Control and Prevention (CDC) stated in a report that there are currently 49 people in the United States who have fallen ill from consuming "quarter pound hamburgers," and the CDC has launched an investigation into this matter.
It is reported that currently, 10 people, including 1 child, are hospitalized in the United States due to infection related diseases, and 1 person has died.
Afterwards, McDonald's urgently responded that it had temporarily withdrawn suspected raw materials related to the accident, and the products involved would not be available for sale in certain states.