route of infection

例句：

1. 1. The bacteria spread through the air and contaminate the food supply.
   细菌通过空气传播，污染了食品供应。
2. 2.The virus is transmitted through contact with infected individuals.
   病毒是通过与感染者接触传播的。
3. 3.The study aims to identify the most effective routes for controlling the disease.
   该研究旨在确定最有效的控制疾病的途径。