Diagnosis
Samples of blood, stool, and bone marrow are taken from the infected person and run the Widal test.
Widal Test
Widal test is performed to recognize specific antibodies in the serum of infected people via using antigen-antibody interaction. When bacteria enter the human body, in response, the immune system starts working. When any person is infected with the S. typhi then it’s very obvious that’s blood contained antibodies against the bacteria typhi. So, the specific antigen interacts with the antibody and starts clumping. If clumping occurred i.e., +ve, and if no clumping i.e., test is -ve.
Typhoid
Typhoid also known as typhoid fever, disease caused by the bacterial infection of Salmonella Typhimurium (S. Typhi). It normally spread via contaminated food and water. When the food or water is already contaminated with the bacteria, intake of such contaminated food infects the healthier person too. After the invasion, the bacteria start to multiply and spread into the blood. Almost 11-20 million people get infected by these bacteria and a large no. of people die every year. Most of the cases are reported in South Asia and Sub-Saharan Africa.
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