The branch of medicine concerned with the diagnosis, treatment, and prevention of diseases in animals.

The ability of a cell, organism, or population to survive, grow, and reproduce under specific conditions.

Able to live, grow, and develop successfully; capable of surviving and functioning under specific conditions.

A small, finger-like projection found in the lining of the small intestine, which increases the surface area for absorption.

A genus of bacteria, some species of which can cause diseases in humans, such as cholera.

Microscopic, hair-like projections on the surface of the small intestine that increase surface area for nutrient absorption.

A small infectious agent composed solely of a short strand of circular RNA, capable of causing plant diseases.

Infectious agents made of RNA that lack a protein coat and can cause diseases in plants.

The branch of science that deals with the study of viruses and viral diseases.

A bacteriophage (virus that infects bacteria) that causes the death of the host bacterium by lysis.