掩饰一些症状是可能的，不过没有人可以控制全身的肌肉(其中包括脸上的90块肌肉)。
It is possible to cover up some signs, but nobody can control all of the muscles in the body (including 90 in the face!).
新生儿、处于疾病早期的儿童以及那些免疫反应发生改变的患者，其实验室检查结果可以正常，没有发热及全身症状。
Neonates, children who are seen in the early stages of the disease, and those with an altered immune response may have normal laboratory study results and no fever or constitutional symptoms.
除了少数感染者可查到“持续性全身性淋巴腺病”(PGL)外，没有其他任何临床症状或体征。
In addition to a small number of infected persons can be found in "persistent systemic lymphadenopathy" (PGL), there is no any other clinical symptoms or signs.
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