In the earliest stage of infection, symptoms are non-specific and may be easily confused with more common diseases, including malaria, yellow fever, and typhoid fever.
在感染的最初阶段，症状为非特异性并可容易地与包括疟疾、黄热病和伤寒在内的较常见疾病相混淆。
2
We can discern from Ge's astute description of his patients' symptoms that people then suffered not only from malaria but also from other deadly diseases including smallpox, typhoid and dysentery.