What is Typhoid fever? Typhoid fever is also called an enteric fever. It is an infection caused by a bacterium called Salmonella typhi and can be life-threatening if not treated. It can cause both typhoid and paratyphoid fevers, Salmonella paratyphi are also involved in causing infection within the body. Typhoid germs can rapidly spread throughout the body and cause fatal complication if the infection is not treated promptly. Salmonella are the bacteria that thrive in human intestines and once gained entry in body through consumption of contaminated water or food they tend to spread rapidly and cause severe infection. Salmonella is a germ that causes Salmonellosis or food poisoning. Typhoid fever can be seen in underdeveloped or developing countries due to the lack of sanitation and use of impure water. It is rarely seen in developed nations. Typhoid vaccines are given to prevent the infection. These vaccines may help to avoid possible contraction of ...