Caduceus Europe is the European counterpart of Caduceus USA. They have assisted Caduceus USA on many missions, including the Africa mission and the Delphi Headquarters raid. Caduceus Europe is based in the United Kingdom.
After the raid on the Delphi HQ, Caduceus Europe found the leader of Delphi, Adam, and took him into their reasearch labs to study him, resulting in finding Z-cells (Which are belived to be the 8th strain of GUILT , "Bliss ") to create an effective medicine. They call in Caduceus USA for a confrence on the subject, which results in a full-scale GUILT outbreak.