The US Centers for Disease Control and Prevention (CDC) and other federal agencies are investigating an E. coli outbreak linked to McDonald’s beef sandwiches. There are 49 reported cases and 10 hospitalizations to date, according to the CDC. At 5:50 p.m., McDonald’s shares fell 9.44% in the after-hours.

According to information from CNN, the outbreaks are related to the Quarteirão sandwich. In addition to the 49 people affected, an elderly woman died.

The cases may be related to chopped onions and hamburger meat, according to the company’s official statement. “We are taking swift and decisive action following an outbreak of E. Coli in some states. Initial findings from the investigation indicate that a subset of illnesses may be linked to chipped onions used at Quarteirão and purchased by a single supplier serving three health centers. distribution,” he said.

Lunch has been temporarily suspended at restaurants in affected areas, including Colorado, Kansas, Utah, Wyoming, parts of Idaho, Iowa, Missouri, Montana, Nebraska, Nevada, New Mexico and Oklahoma.

See the full statement [aqui].

* With information from Estadão.