Staph Infection - An infection caused by any one of several harmful species or subspecies of bacteria of the genus Staphylococcus.⏎
Sperm Cell - The male gamete, or sex cell, which carries the hereditary material of the male parent and unites with the female egg cell during sexual reproduction.⏎
Species - One of the most basic units of biological classification, ranking just below the genus and comprising individuals or populations capable of interbreeding.⏎
Virus - An infectious agent that is only capable of replicating itself inside the living cells of other organisms.⏎
Vaccine - A biological preparation that improves the immune system’s ability to recognize and destroy harmful infectious agents.⏎