【鉴别诊断】1.急性期需与上呼吸道感染、急性胃肠炎、肠炎、痢疾、伤寒和急性粟粒结核、败血症等鉴别。
O O O O O O O O O O O O O B-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis I-dis I-dis O B-dis I-dis O B-dis I-dis O B-dis I-dis O B-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis O O O O