梅毒菌素

例句：

1. 1. Syphilis is a sexually transmitted disease that can cause serious health problems.
   梅毒是一种可以通过性行为传播的疾病，可能导致严重的健康问题。
2. 2. The patient was diagnosed with syphilis and required immediate treatment.
   病人被诊断出患有梅毒，需要立即治疗。
3. 3. Syphilis can be prevented by taking antibiotics as prescribed by a doctor.
   通过按照医生的处方服用抗生素，可以预防梅毒。