OBJECTIVE To investigate the relevance of cerebral infarction and cytotoxin-associated protein A positively infected by H.pylori(CagA-Hp-positive)so as to improve the diagnosis and treatment of cerebral infarction.METHODS Totally 65 cases of CagA-Hp-positive patients in neurology department and ICU from Jan.2012 to Jan.2014 were selected as study objects.Another 65 cases of CagA-Hp-negative patients were chosen as control group.The changes of relevant indicators and distribution of subtypes were compared in...