Vaccine - A biological preparation that improves the immune system’s ability to recognize and destroy harmful infectious agents.⏎
Urogenital Disease - Disease of the organs involved in the excretion of fluids and reproduction.⏎
Tissue Culture - The process by which tissues are intentionally grown under controlled conditions.⏎
Vector - An organism (usually an arthropod such as a flea, mosquito, or tick) that carries an infectious agent from one host to another.⏎