Species - One of the most basic units of biological classification, ranking just below the genus and comprising individuals or populations capable of interbreeding.⏎
Zoonoses - Any disease that can be transmitted from vertebrate animals to humans.⏎
Vaccine - A biological preparation that improves the immune system’s ability to recognize and destroy harmful infectious agents.⏎
Virus - An infectious agent that is only capable of replicating itself inside the living cells of other organisms.⏎
Schizophrenia - A serious mental illness characterized by the presence of hallucinations, delusions, disorganized speech or thinking, a loss of contact with reality, and a noticeable deterioration of functioning in everyday life.⏎