They started by exposing mice to histamine or the antimalarial drug chloroquine, both of which trigger scratching.

他们首先让老鼠接触组胺或抗疟药氯喹，二者都能触发抓挠行为。

The final straw for the doctor was Mr. Bolsonaro's insistence that the Health Ministry prescribed chloroquine to Covid-19 patients.

总纳罗坚持要求卫生部给新冠肺炎患者开氯喹，这超出了这位生底线。

To make matters worse, the parasite that causes malaria had become resistant to the main treatment they were using, called chloroquine.

更糟糕是，导致疟疾寄生虫对他们使要治疗方法氯喹产生了抗药性。

He fired the next health minister after he refused to prescribe chloroquine to all Covid patients.

在拒绝给所有 Covid 患者开氯喹处方后，他解雇了下一任卫生部长。

There are several human clinical trials all over the world evaluating the potential for different antiviral drugs to have some effect on COVID-19: Remdesivir, chloroquine, some of the HIV protease inhibitors, and some of these other things.

世界各地有几项人体临床试验评估不同抗病毒药物对 COVID-19 产生一定影响潜力：瑞德西韦、氯喹、一些 HIV 蛋白酶抑制剂，以及其中一些其他药物。