Question

Widal test is done to confirm.
A. Malaria
B. Typhoid
C. Pneumonia
D. Jaundice

Answer 1

Hint: The Widal test is a serological test that is performed for typhoid fever diagnosis. This test combines the disease-causing bacteria with a serum containing specific antibodies collected from the infected person. The presence of a high antigen titration for the disease is demonstrated by the positive test result.

Complete answer: Georges-Fernand Widal, named after its founder in 1896, is a backhanded agglutination test for enteric fever or undulant fever in which microbes that trigger typhoid fever are combined with a serum containing explicit antibodies acquired from an infected person. Typhoid fever often referred to as typhoid, is a bacterial disease caused due to a particular form of bacteria called Salmonella typhi. The traditional Widal test estimates antibodies against the causative living being's flagellar (\[H\]) and physical (\[O\]) antigens. The primary rule of the Widal test is that if the homologous immune response is available in serum patients, it reacts with the reagent with individual antigen and provides visible bunching on the test card showing agglutination. The antigens used in the test are "\[H\]" and "\[O\]" Salmonella typhi and "\[H\]" S antigen. In this procedure, the serum is combined with a dead salmonella bacterial suspension that has explicit antigens on it.
Hence, the correct answer is option B.

Note: Some of the common symptoms of typhoid include fever, headache, stomach ache, loss of appetite, diarrhoea, etc. It mainly affects the liver in an organism. It is transmitted through contaminated food and water.