Typhoid fever is an infection that causes diarrhea and a rash accompanied by fever – most commonly due to a type of bacteria called Salmonella typhi (S. typhi). Also referred to sometimes as Enteric fever.
The bacteria that cause typhoid fever — S. typhi — spread through contaminated food, drink, or water. If you eat or drink something that is contaminated, the bacteria enter your body. A few people can become carriers of S. typhi and continue to release the bacteria in their stools for years, spreading the disease.
Early symptoms include fever, general ill-feeling and abdominal pain. A high (typically over 103 degrees Fahrenheit) fever and severe diarrhea occur as the disease gets worse. Some people with typhoid fever develop a rash on the abdomen and chest.
Symptoms usually improve in 2 to 4 weeks with treatment. The outcome is likely to be good with early treatment, but becomes poor if complications develop. Symptoms may return if the treatment has not completely cured the infection.