You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Widal test is - and explain in detail?
Ans. is 'd' i.e., Tube agglutination Agglutinationo When a particulate antigen is mixed with its antibody in the presence of electrolytes at a suitable temperature and pH, the particles are clumped or agglutinatedo Agglutination is more sensitive than precipitation for the detection of antibodies.Agglutination tests|||||Slide agglutinationTube agglutinationCoombs testPassive agglutination testo Blood grouping and cross - matchingo Widal testo Weil - felix reactiono Paul Bunnell testo Cold agglutination testo Streptococcus MG agglutination testo Anti - Rh antibody test||||| Haemagglutinationo Rose Waaler test for R. A.Latex agglutinationo Detection of: ASO CRP RA factor HOG