Conversation: The conversation between human and AI assistant.
[|Human|] My wife was suffering from Typhoid fever the result of Widal test is likeS Typhi o Antigen: less than 1 in 320 dilutionS Typhi H Antigen: less than 1 in 160 dilutionS Paratyphi AH Antigen: less than 1 in 20 dilutionS Paratyphi BH Antigen: less than 1 in 20 dilution could you please comment on this?
[|AI|]  Hello, Welcome to Chat Doctor, Widal test is a serological test used in diagnosis of typhoid fever during second week of fever, still it is not a confirmatory test. Blood culture is the investigation of choice in diagnosis of typhoid fever. The titles of tidal test for S Ty phi O Antigen is less than 1 in 320 dilution and S Ty phi H Antigen is less than 1 in 160 dilution suggest that there could be an infection with the typhoid bacilli. It can be confirmed by the rising titles of O and H antigen of S Ty phi.S