Which term describes a source that allows a pathogen to survive and multiply?

• A. Reservoir
• B. Host cell
• C. Vector
• D. Fomite

Answer: (A)

Verified step by step guidance

1. Understand the key terms related to pathogen transmission: a 'host cell' is the specific cell a pathogen infects; a 'vector' is an organism that transmits a pathogen; a 'fomite' is an inanimate object that can carry pathogens temporarily.
2. Focus on the term that describes a place or environment where a pathogen can not only survive but also multiply, which is essential for maintaining the pathogen in nature.
3. Recall that a 'reservoir' is defined as any living or non-living source that allows a pathogen to persist and multiply, serving as a continual source of infection.
4. Compare the options: 'host cell' is too specific to the cellular level, 'vector' is about transmission, and 'fomite' only carries pathogens without supporting multiplication.
5. Conclude that the term 'reservoir' best fits the description of a source that allows a pathogen to survive and multiply.