Salmonella Symptoms: Am I Really Sick?

(CBS) There are more than 2,000 strains of salmonella bacteria, according to the Mayo Clinic, but only a dozen or so make people sick.

Most often, salmonella poisoning results in gastroenteritis, a severe stomach illness.

PICTURES: 9 Signs of Salmonella Poisoning

But sometimes salmonella can result in typhoid fever, a disease with high fever and inflamed intestines, more commonly found in the developing world.

Salmonella is most often contracted by eating raw or undercooked meat, poultry, and eggs.

The symptoms, such as nausea, cramps, and headache, can often look a lot like those caused by minor ailments.

How can you tell when you are really sick? Check out our handy slide show.