即使在我服用它们的时候，世界许多地区的导致疟疾的寄生虫已经拥有了氯喹抗药性。 巴布亚新几内亚是这些药片还能管用的最后几个地方之一，而即使在那里，氯喹的药效也是每况愈下。
Even at the time I was taking them, the parasite that causes malaria had already become resistant to chloroquine in many parts of the world; Papua New Guinea was one of the last places where the pills continued to be effective, and even there they were losing their potency.