An animal that carries a pathogen and also serves as host for the pathogen is a ___________ vector.

Verified step by step guidance

1. Understand the definition of a vector in microbiology: a vector is an organism that transmits a pathogen from one host to another.
2. Differentiate between types of vectors: mechanical vectors carry pathogens passively without being infected, while biological vectors carry and also serve as hosts where the pathogen can multiply or develop.
3. Identify that the problem describes an animal that both carries the pathogen and serves as a host, meaning the pathogen undergoes part of its life cycle inside this animal.
4. Recall the term used for such vectors: biological vectors are those that harbor the pathogen internally and facilitate its development or multiplication.
5. Conclude that the correct term to fill in the blank is 'biological' vector.

Key Concepts

Vector in Disease Transmission

A vector is an organism that transmits a pathogen from one host to another. Vectors can be mechanical, carrying pathogens passively, or biological, where the pathogen undergoes development or reproduction within the vector.

Biological Vector

A biological vector is an organism that not only transmits a pathogen but also serves as a host where the pathogen can grow, develop, or multiply. This relationship is essential for the pathogen's life cycle and transmission.

Host-Pathogen Relationship

The host is an organism that harbors a pathogen, providing an environment for its survival and reproduction. When a vector acts as a host, it supports the pathogen's life cycle, facilitating its spread to new hosts.