The immune system fights off the pathogen by Leukocytes also known as white bloodcells. When a pathogen enters the body the immune system becomes alert to it and sends out sends out the Phagocytes (a type of Leukocytes) which engulfs the pathogens.
"Defensive driving means protecting yourself from more than just other drivers. It's about thinking ahead and anticipating hazards so you can avoid accidents before they happen."
