Unfortunately these drugs are quite toxic and hinder the body's ability to fight off infection.
不幸的是，这些药毒性很大，妨碍身体抗感染的能力。
《柯林斯英汉双解大词典》
2
European Union health officials say the rate of infection from the highly-toxic strain of E.coli which has hit Germany and killed nearly 20 people has fallen in the past two days.
高毒性大肠杆菌袭击德国，造成近20人死亡。欧盟官员称，过去两天，这种大肠杆菌的感染率已经出现下降。
3
The slightly elevated levels of aminotransferases may reflect an early toxic effect of methotrexate on the liver, although a nonspecific response to a systemic infection is also possible.