Oregon State University - Virulence Factors of Bacterial and Viral Pathogens
Very good to review this material to get a basic feel for this subject. You don't need advanced foreknowledge of virulence factors, but to be ready to get your footing in a passage.
NCBI - Bacterial PathogenesisThis area of biology is a preoccupation for the test-writers. As long as you treat it like pleasure reading and don't stress out, this is a very worthwhile read.
