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What is Scrub typhus is positive for and explain in detail?
Scrub typhus aka chigger borne typhus is caused by orientia tsutsugamushi.In a heterephile agglutination test(weil Felix reaction), the sera of scrub typhus patients agglutinated only OX K strain of proteins mirabilis without getting agglutinated with OX 19 and OX 2 ...as some rickettsiae and ceain strains like OX K ,OX 19 and OX 2 of proteus share alkali stable carbohydrate antigen Ref: Ananthnarayan and paniker's microbiology 10th edition