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 Heterophile antibody is found in - and explain in detail?
Weil- Felix reaction for the diagnosis of typhus fever is a hetrophile agglutination test. Based in the sharing of common antigen between typhus rickettsiae and some strains of proteus bacilli. Hetrophile antigen is the same or closely related antigens occurring in different species, classes or kingdoms. Reference : Anathanarayan & paniker's 9th edition, pg no: 109,89 <\p>