Investigators have been unable to trace the source of the outbreak

Summary

A listeria outbreak linked to Lyons ReadyCare and Sysco Imperial frozen shakes has resulted in 11 deaths and 37 hospitalizations.

The shakes, sold to hospitals and long-term care facilities, are now under voluntary recall.

The FDA and CDC traced 38 cases in 21 states, mostly within care facilities. Symptoms of listeria, which can appear up to 10 weeks after consumption, range from mild flu-like symptoms to severe neurological issues.

Facilities are urged to stop serving the shakes and sanitize affected areas. The outbreak, with cases dating back to 2018, highlights the vulnerability of institutionalized individuals to foodborne illnesses.