Was the acquisition of SPI-5 essential for the development of human pathogens? Why or why not?
Added by Emily S.
Step 1
Step 1: Clarify the scope — SPI-5 refers to a Salmonella pathogenicity island (a horizontally acquired genomic island) found in many Salmonella enterica strains; the question most reasonably asks whether acquiring SPI-5 was essential for the evolution of Salmonella Show more…
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