Define virulence factors, factor that helps bacteria evade host immune defenses

/in /by
  1. Define virulence factors AND give one example of a BACTERIAL virulence factor that helps bacteria evade host immune defenses.
  2. Define vector of disease
  3. Patient W dies of an E.coli infection Explain why this microbe, which normally lives in the colon, could kill the patient, after an intestinal puncture.
  4. Emily got German measles when she was 10 years old.  When she was 18 years old, she was exposed again to the German measles virus.  Explain the immunological reason why Emily doesn’t get German measles when re-exposed to the virus at 18.
  5. Define biofilm.