Which term refers to the specific ways microorganisms travel from reservoir to susceptible host?

• A. Mode of Transmission
• B. Pathogenic Organism
• C. Sanitization
• D. Antisepsis

Answer: (A)

This question focuses on how infections spread from one place to another by the exact pathways pathogens use to move from their living place (reservoir) to a person who can be infected (susceptible host). The term for these specific pathways is mode of transmission. It covers how a microorganism travels, whether by direct contact, through droplets, in the air, via contaminated objects, or by a vector like an insect. Understanding this helps explain how outbreaks occur and where controls can interrupt the spread.

The other terms describe different concepts: a pathogenic organism is the microbe itself, sanitization is cleaning to reduce microbes on surfaces, and antisepsis is chemical treatment to reduce microbes on living tissue. None of these describe the travel paths from reservoir to host, which is why mode of transmission is the best answer.