cross-infection
noun /ˈkrɒs ɪnfekʃn/
  /ˈkrɔːs ɪnfekʃn/
[uncountable] (medical- an occasion an infection is passed to somebody who has a different infection or to a different species of animal or plant交叉感染 - The hospital is taking measures to reduce the risk of cross-infection.医院正在采取措施降低交叉感染的风险。 
 
- The hospital is taking measures to reduce the risk of cross-infection.