the united states centers for disease control and prevention (CDC) has linked a deadly e. coli outbreak to mcdonald's quarter pounder burgers.
right now, 49 infections have been linked to this outbreak. this includes 10 hospitalizations and 1 death. these numbers are expected to rise, and only represent infections that have been linked to this outbreak. the CDC expects the true number of infections to be much higher, because most people recover from e. coli without medical intervention within around a week. and it can take weeks for a confirmed case to be officially associated with an outbreak.
it typically takes e. coli 3-4 days after exposure to cause illness. in some cases, such as those already associated with this outbreak, e. coli can cause death or disability.
so far, the cases associated with this outbreak were from september 27th to october 11th, 2024. infections may have occurred before or after this date range.
the ten states with confirmed cases so far (this list might expand, do NOT rely on this list to keep you safe): wisconsin, oregon, montana, wyoming, utah, colorado, nebraska, kansas, missouri, iowa.
mcdonald's has pulled the ingredients for quarter pounders in some states while they investigate, and quarter pounders may not be sold in those states for a while as a result.
as with all foodborne illness outbreaks, if you think you are affected by this, talk to your healthcare provider. even if just to record and report that you got sick.
as of when I am posting this, it is not yet known for sure which mcdonald's ingredient is contaminated, but the FDA thinks it might be onions. there is currently no list of which specific mcdonald's locations received the suspect onions, or what other restaurant chains, if any, also get their onions from the same source.
this outbreak investigation is ongoing and moving quickly. there will be better answers and more information soon.