A widespread occurrence of an infectious disease in a particular population or geographic area within a short period.

In a manner that relates to or is characteristic of an epidemic, often referring to the rapid spread of a disease.

Relating to the epidermis, the outermost layer of skin or tissue in plants, which provides protection and regulates water loss.

The outer layer of cells in plants and animals, providing a barrier to the environment and protection from harmful substances.

A coiled tube located on the surface of the testes in males, where sperm mature and are stored before ejaculation.

Inflammation of both the epididymis and the testes, often caused by infections or other inflammatory conditions.

The theory that organisms develop through a series of stages from a simple to a complex form, influenced by environmental and genetic factors.

Relating to changes in gene expression or cellular phenotype that do not involve changes to the underlying DNA sequence.

A heritable change in gene expression or cellular phenotype that does not involve alterations in the DNA sequence itself.

A leaf-shaped flap of cartilage located at the base of the tongue, which covers the opening of the windpipe during swallowing to prevent food from entering the airway.