患儿男.3岁,生后反复惠肺炎腹泻、脑膜炎,2周前因患败血症死亡。血清IgG7.6g/L.IgA 0.76g/L,IgM 0.056g/L.细胞免疫功能测定正常外周血淋巴细胞数正常,骨髓找到浆细胞。最可能的诊断是
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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