E. coli cases linked to McDonald's Quarter Pounders rises to 75, federal agencies say

An E. coli outbreak associated with McDonald's Quarter Pounders has resulted in 75 illnesses across 13 states, involving 22 hospitalizations and one fatality. Among those hospitalized, two patients suffered from hemolytic uremic syndrome, a serious E. coli complication, though the deceased individual did not experience this syndrome.

Initial investigations reported 49 cases in 10 states, now expanded to include Michigan, New Mexico, and Washington. Much of the outbreak continues in Colorado. Authorities are attempting to identify the bacterial source, with beef patties or slivered onions as likely culprits. All individuals interviewed had consumed McDonald's products, predominantly beef hamburgers.

Governmental efforts are underway to determine the outbreak's origin, involving coordinated inspections and sample reviews. McDonald's has proactively removed Quarter Pounders and onions in affected areas pending investigation outcome. Furthermore, McDonald's supplier has pulled yellow onions from circulation, and certain other fast-food establishments have stopped using these onions at select locations.