McDonald's E. coli outbreak is over, CDC says - McDonald's E. coli outbreak cleared by CDC after investigation - E. coli outbreak linked to McDonald's onions is over: CDC - National COVID-19 vaccination rate less than 20 percent: CDC survey - CDC warns of infection spread via body lice in homeless populations - Lung infections increasing among children, CDC says - Illnesses linked to McDonald's E. coli outbreak rise to 75, CDC says - McDonald's-linked E. coli outbreak spreads to 13 states: CDC - Deadly McDonald's E. coli outbreak grows to 13 states: CDC - Deadly E. coli outbreak linked to McDonald's Quarter Pounders, CDC says