Was your child diagnosed with salmonella through a stool culture? As the article above states, salmonella can be a problem is under cooked eggs or chicken is eaten. The reason that the public is always advised to cook both eggs and chicken thoroughly is due to the fact that some chickens will have the bacteria, and we should always assume that. Most poultry farms in the past where an outbreak is confirmed, have to put down all of their birds. If you have a local extension agent or NPIP official, they may help you test your flock. Also the state vet could probably advise you about testing--here is a link for that: http://www.usaha.org/Portals/6/StateAnimalHealthOfficials.pdf
