I seem to remember a bunch of passengers in first class getting food poisoning on a flight to California some 25 years or so ago. I don’t remember is any of them died. There was botulism found in the aspic.
Think about how many people get food poisoning round the world and die annually. How many have died of food poisoning on airliners round the world? While unfortunate it seems one has a better chance of getting poisoned at a local restaurant in their home town, than from catered food on a jet half way round the world.