<P> The cause is the bacterium Salmonella Typhi , also known as Salmonella enterica serotype Typhi , growing in the intestines and blood . Typhoid is spread by eating or drinking food or water contaminated with the feces of an infected person . Risk factors include poor sanitation and poor hygiene . Those who travel to the developing world are also at risk and only humans can be infected . Diagnosis is by either culturing the bacteria or detecting the bacterium 's DNA in the blood , stool , or bone marrow . Culturing the bacterium can be difficult . Bone marrow testing is the most accurate . Symptoms are similar to that of many other infectious diseases . Typhus is a different disease . </P>
<P> The cause is the bacterium Salmonella Typhi , also known as Salmonella enterica serotype Typhi , growing in the intestines and blood . Typhoid is spread by eating or drinking food or water contaminated with the feces of an infected person . Risk factors include poor sanitation and poor hygiene . Those who travel to the developing world are also at risk and only humans can be infected . Diagnosis is by either culturing the bacteria or detecting the bacterium 's DNA in the blood , stool , or bone marrow . Culturing the bacterium can be difficult . Bone marrow testing is the most accurate . Symptoms are similar to that of many other infectious diseases . Typhus is a different disease . </P>
where does salmonella typhi live in the body
where does salmonella typhi live in the body
in the intestines and blood
in the intestines and blood