An antibody is a protein used by the immune system to identify and neutralise foreign objects like bacteria and viruses. Each antibody recognises a specific antigen unique to its target. Production of antibodies is referred to as the humoral immune system.
Rudolf Ludwig Carl Virchow was born on October 13, 1821 in the town of Schivelbein, in the German Kingdom of Prussia. Today the town is called Åwidwin and lies in Poland. His father was Carl Christian Siegfried Virchow, a farmer, and town treasurer of Schivelbein; his mother was Johanna Maria Hesse.
Rudolf Abel, in full Rudolf Ivanovich Abel, original name William August Fisher (born July 11, 1903, Newcastle upon Tyne, Northumberland, Englandâdied November 15, 1971, Moscow, Russia), Soviet intelligence officer, convicted in the United States in 1957 for conspiring to transmit military secrets to the Soviet Union.