If the immune system was depleted of its T-regs, however, the parasite was completely purged, but reinfection was dealt with inefficiently, as if the mice had never before encountered the invader.

• 但是，若免疫系统缺乏调节性T细胞，寄生虫在第一次感染时就会全部肃清，当再度发生感染时，小鼠免疫系统却效率不彰，就好像是从未遇过入侵者一般。