再传染

例句：

1. 1. After the surgery, she was advised to avoid close contact with others to prevent reinfection.
   手术后，她被建议避免与其他人密切接触以防止再次感染。
2. 2. The patient's family members were instructed to wear masks and practice social distancing to reduce the risk of reinfection.
   病人的家庭成员被告知要戴口罩并保持社交距离以减少再次感染的风险。
3. 3. Researchers are conducting studies to understand the mechanisms behind reinfection and develop effective strategies to prevent it.
   研究人员正在研究了解再感染的机制以及开发有效的策略来防止它。