Reproduction - The process by which parent organisms create new offspring by either sexual or asexual means.⏎
Prion - A causative agent of infectious disease that is composed primarily of protein.⏎
Respiratory Tract - The part of the anatomy that has to do with the passage of air and includes the nose, larynx, trachea, and lungs.⏎
National Institute of Allergy and Infectious Diseases (NIAID) - Part of the U.S. Department of Health and Human Services and the National Institutes of Health, NIAID conducts and supports basic and applied research to better understand, treat, and ultimately prevent infectious, immunologic, and allergic diseases.⏎
Pathogen - A biological agent that causes disease.⏎