One of the most valuable things I learned in this immunology class was how the body uses both humoral and cellular immunity to defend against pathogens, especially through the action of T cells. This helped me make a strong connection to what I learned in general microbiology, particularly about how different types of pathogens—like viruses and bacteria—interact with the immune system. In microbiology, we studied how microbes invade and replicate, but immunology helped me understand what happens next: how the immune system detects, responds to, and remembers these invaders. This deeper understanding made topics like antigen presentation, inflammation, and immune evasion by pathogens much clearer. It also gave me a new appreciation for how vaccines work and why microbial mutations can impact vaccine effectiveness. The video above really helped me put everything together at the beginning of the course. Overall, this connection helped me think more critically about host-pathogen interactions and strengthened my ability to apply concepts across disciplines in biology.