Sterilization - The process of destroying all forms of life, including infectious agents, from a surface, fluid, or biological medium with the use of heat, chemicals, irradiation, high pressure, filtration, or some combination of these methods.⏎
White Blood Cell - A special type of cell that works as part of the immune system to defend the body against disease and infection.⏎
Suburbanization - The process of land conversion and development around the periphery of major cities.⏎
Vaccine - A biological preparation that improves the immune system’s ability to recognize and destroy harmful infectious agents.⏎
Species - One of the most basic units of biological classification, ranking just below the genus and comprising individuals or populations capable of interbreeding.⏎