Microbiology General a4894ee3 True statement about Widal test in typhoid is? A 0-antigen titre remains positive for several months & reaction to it is rapid B H-antigen titre remains positive for several months & reaction to it is rapid C Both remain positive for several months & reaction to both is rapid D None High-Yield Explanation Ans. is 'b' i.e., H-antigen titre remains positive for several months and reaction to it is rapid