About HUS all are true except -
High-Yield Explanation
Ans. (b) Causes mild to severe coombs positive hemolytic anemia(Ref: Robbins 9th/pg 942-943; 8th/pg 952-953)Typical HUS gives rise to coombs negative hemolytic anemia because autoantibodies are absent; HUS & TTP have been explained in detail in the chapter 12 on Bleeding disorders.