### E. Coli Outbreak Linked to McDonald's Quarter Pounder Hamburgers

A rapid investigation is underway to address a recent E. coli outbreak, with most affected individuals reporting they consumed Quarter Pounder hamburgers from McDonald's. In response, McDonald's has removed certain ingredients used in these burgers, resulting in their unavailability in several states.

According to reports, 75 individuals so far have been identified across various states, as shown on an investigative map. However, health officials caution that the actual number of infections is likely significantly higher. This discrepancy is attributed to many infected individuals recovering without seeking medical attention and thus not being tested for E. coli.

The outbreak might not be confined to states where cases have been reported, raising further concerns. Investigators are urgently working to pinpoint which ingredient in the Quarter Pounders is contaminated.

E. coli is a bacterium that can lead to diarrheal illness, with six different strains known to affect humans. Symptoms, prevention tips, and more information about this bacterium and the infection it causes are crucial for public awareness as efforts continue to mitigate the outbreak.