ask: How is peanut butter causing salmonella poisoning?

Apparently, there is more reason for concern. Items like health bars, crackers and ice cream are now at risk: http://www.cnbc.com/id/28736688/for/cnbc/

Salmonella can also be found in the environment, and not just in undercooked or unpasteurized foods. In fact, the previous peanut butter recall from salmonella (2007) was spread in this way. "The company traced the contamination to a leaky roof and faulty sprinkler head at its Georgia plant", according to a CNBC report. Many of the salmonella cases have occurred where food is contaminated during preparation and storage, which may be the case in the preparation of the peanuts for these products.

Remember the recent salmonella outbreak in produce (was it tomatoes or jalapenos..I can't recall now!)? The harmful bacteria in these instances may be found in the soil, or the vegetables can be contaminated after they are harvested.

In fact, the following foods listed below have been responsible for foodborne illnesses:

* raw and undercooked meat (especially poultry)
* raw fruits and vegetables (especially sprouts and cantaloupes) and their juices, e.g. apple or orange juice
* raw or undercooked eggs
* unpasteurized dairy products, like raw milk and raw milk cheeses, cream-filled deserts and toppings
* pet treats
* fish and shrimp
* sauces and salad dressings
* dried gelatine, peanut butter, cocoa and chocolate

The FDA website has an updated searchable online database of products that are being recalled.