Many diseases begin to spread rapidly with the onset of summer. The number of typhoid patients is also increasing in these months. It is not like a common fever, but comes in the category of serious illness. Typhoid fever is also known as periodic fever. Typhoid fever is a bacteria in the digestive system and bloodstream called Salmonella typhi that goes into our body through contaminated water and food. The temperature of a person infected with this disease reaches 104 degrees Fahrenheit.