Microbiology In salmonella infection, true statement is: A Flagellar antigen forms chalky granular clumps B Somatic antigen is a protein C Absence of Vi antibody indicate poor prognosis D Serological classification is by Craige's scheme 💡 Explanation In salmonella infection, true statement is: ✓ Correct Answer: C. Absence of Vi antibody indicate poor prognosis