Microbiology IUPUI Exam 1: Complete Q&A with Verified Solutions 2025/2026

Transmissible - an infectious disease agent that's transmitted from either reservoir or a portal. It is transmitted in 3 modes: (1) contact, (2) vehicle, (3) vector Contact Transmission - -Direct: person to person (kissing) -Indirect: one host to another by fomites (needles, toothbrush) -Droplet: droplets of mucus that exit mouth (cold and flu) Vehicle Transmission - spread of pathogens via air, drinking water, and food. Also, blood and bodily fluids handled outside of the body (airborne, waterborne, food borne, blood and body fluids) Vector Transmission - animals that transmit diseases from one host to another -Biological: vectors affecting humans are biting arthropods (mosquito) -Mechanical: passively carry pathogens to new hosts on their feet or other body parts (houseflies, cockroach) Epidemic - appearance of infectious disease or condition that attacks many people at the same time in the same area (flu)