1·Inadequate disposal of human excreta is a major health risk in emergency situations.
在紧急情况下，人类排泄物的不适当处置是一个主要的健康危害。
2·Humans usually become infected with Lassa virus from exposure to excreta of infected Mastomys.
人类通常通过暴露于受感染的Mastomys鼠的排泄物感染拉沙病毒。
3·Mastomys infected with Lassa virus do not become ill, but they can shed the virus in their excreta (urine and faeces).
感染拉沙病毒的Mastomys 鼠并不发病，但它们可将病毒排放到其排泄物（尿和粪便）中。
4·It should be noted that disinfectants should not be poured into pits or tanks of latrines that dispose of excreta by biological degradation.
值得注意的是，通过生物降解处理排泄物的厕所，不应向厕坑或者水箱中投放消毒剂。
5·They are caught directly from the excreta of these animals by people living in rural areas and then spread person to person.
生活在农村地区的人直接逮到这些沾染排泄物的动物，然后病毒得以迅速传播。