1 dead, 49 sickened in E. coli outbreak linked to McDonald's Quarter P

E. coli traced to McDonald's Quarter Pounders affects people across 10 U.S. states, says CDC.. The outbreak involves strain E. coli O157 H7, causing severe intestinal infections in humans.. Colorado reports 27 cases, while Nebraska has nine, highlighting regional impact of outbreak.. CDC continues investigation as more cases may emerge, urging public caution and awareness.