Salmonella_paratyphi_A_and_B___What_is_the_cause_of_the_phase_variation_in_Salmonella_paratyphi_A_and_B
Salmonella typhi evades the Human immune response by producing the Vi Capsule and thuis masking the kighly immunogenic LPS underneath. Salmonella paratyphi A and B do not encode such a capsule so how do these pathogens avoid the imune response as they transverse into the blood stream. In the process of working with Saslmonella paratyphi A and C strains, we observed two colony morhology types of interest- 'smooth' and 'rough'