作者: Erik G Granquist , Kjetil Bårdsen , Karin Bergström , Snorre Stuen
关键词: Immunity 、 Defence mechanisms 、 Cell mediated immunity 、 Biology 、 Virology 、 Humoral immunity 、 Anaplasma phagocytophilum 、 ANAPLASMOSES 、 Anaplasmosis
摘要: Background Anaplasma phagocytophilum is the causative agent of tick-borne fever in ruminants and human granulocytotropic anaplasmosis (HGA). The bacterium able to survive for several months immune-competent sheep by modifying important cellular humoral defence mechanisms. Little known about how different strains A. propagate their natural hosts during persistent infection.