1、Malaria is caused by a hematozoon known as Plasmodium.

疟疾是由一种叫做疟原虫的血液寄生虫引起的。

2、Scientists are studying the life cycle of the hematozoon to find ways to prevent its transmission.

科学家正在研究血液寄生虫的生命周期，以寻找预防其传播的方法。