Genetics - A branch of biology that studies heredity and variation in organisms.⏎
Contagion - A general term for any disease-causing infectious agent spread by direct or indirect contact.⏎
Epidemic - An often sudden increase in the level of disease in a specific population over a given period of time.⏎
DNA - Short for deoxyribonucleic acid, DNA is any of the nucleic acids that contain the genetic instructions necessary for the development and functioning of all living organisms as well as some viruses.⏎
Fungi - A taxonomic kingdom of spore-forming organisms distinct from plants, animals, and bacteria that includes microorganisms such as yeast and molds, as well as mushrooms.⏎