Salmonella Results in the Recall of 550 Million Eggs

You have probably read of the recall of 550 million eggs in the USA because of a risk that they could carry salmonella. The article explains in some detail how it happens that eggs, which appear to be well packaged in a pretty impervious shell, come to contain salmonella.

Seems the salmonella either comes through the chicken, which is not affected by being infected, or enter through the shell from a dirty environment after they have been laid.

Well cooked or pasteurised eggs are safe, while foods that use raw eggs such as mayonnaise and eggnog are a potential danger.