While working as an infectious disease specialist at the local hospital, Patient X is brought in with signs/symptoms of diarrhea, weight loss, and abdominal pain. You suspect that they have been infected with a new bacterial pathogen, which makes a novel exotoxin that blocks protein production in the intestinal villi, preventing growth. You suspect the exotoxin gene can be found on a pathogenicity island located on the bacterium's plasmid. Your supervisor asks you these questions: What type of exotoxin do you think the bacterium makes and what would you look for to confirm your hypothesis? Other than the exotoxin gene itself, What clues would you look in the plasmid's DNA, to indicate the presence of a pathogenicity island? Is it likely that the novel exotoxin will start appearing in other bacterial species? Why or why not? What is the likely mode of transmission for this bacterial pathogen? Explain your rationale.