Common symptoms include fever , headache , rash , muscle pain , chills and dry cough . pneumonia may sometimes occur . encephalitis , myocarditis and thrombophlebitis are occasional complications 常见病征包括发烧、头痛、红疹、肌肉疼痛、发冷及干咳，严重个案会引致肺炎，少数情况会并发为脑炎、心肌炎、血栓性静脉炎等病症。
Soon after the opening , a flood of patients started arriving at dr . zhang ' s office with mysterious new complaints : headaches , vomiting , nausea , dizziness , itchy skin , dry coughs , teary eyes , hair loss 在工厂开工不久后，一个个有着奇怪病症的病人像洪水一样涌入张医生的诊所:头痛，呕吐，反胃，头昏眼花，皮肤发痒,干咳，泪水沾湿的眼睛，头发损失。
Conjunctiitis , lymphadenopathy , hepatitis , and a nonproductie cough can be features of leptospirosis , and the sensitiity of serologic testing aries greatly depending on the point in the infection at which the specimens are obtained , potentially leading to a false negatie result early in the infection 结膜炎、淋巴结病变、肝炎和干咳可以是钩端螺旋体病的特征，而血清学检查的灵敏性很大程度取决于取样的时间，所以在感染初期很可能得到假阴性结果。
