A member asked:

I have lab results that show positive for the following; what does it mean with the different types and all? salmonella h type a & b and sal o type vi

A doctor has provided 1 answer
Dr. David Lipkin answered

Specializes in Internal Medicine

It's complicated: Human Salmonella infections are caused by the species Salmonella enterica, which is divided into six subspecies. There are over 2500 distinct serotypes(distinct variants) of the species. The Widal Test tests for antibodies to the surface(O) antigen and flagella(H)antigen. Acute and convalescent sera should show a 4 fold increase in titer to be considered positive. See > http:///bit.ly/1kJgGtF .

Answered 1/8/2016

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