Among 32 children patients with HPS,15(46.9%) patients had definite infections,3(9.4%) patients were Familial Hemophagocytic syndrome,but the pathogenies could not be identified in the other 14(43.8%) patients.

• 32例小儿噬血细胞综合征中 ,1 5例 ( 4 6 9%25 )发病与感染相关 ,3例( 9 4%25 )为家族性 ,1 4例 ( 4 3 8%25 )病因不明 ;