The parasites are spread to people through the bites of infected Anopheles mosquitoes, called "malaria vectors", which bite mainly between dusk and dawn.
这些寄生虫通过受感染的按蚊叮咬在人际进行传播。按蚊是疟疾病媒，主要在黄昏至拂晓期间叮咬。
In the U.S., mosquitoes were responsible for the West Nile outbreak, and half the world's population is at risk for malaria, which is spread via pathogens in the mosquito's saliva.
数年前美国的西尼·罗热的罪魁祸首就是蚊子，世界上一半的人口面临疟疾的威胁，蚊子唾液中的病原体就是其传播渠道。
Every year, nearly one million people die of malaria, which is spread by mosquitoes.
每年都有上百万的人死于蚊虫叮咬所传播的疟疾。
They were able to estimate the rate at which malaria parasites would have had to diversify in order to spread to other hosts, like mammals.
他们甚至可以推算疟疾寄生虫为了在其他宿主比如哺乳动物上传播的进化比例。
Both the malaria parasite and the mosquitoes which spread it respond to temperature and moisture.
疟原虫和其传播源蚊子都喜欢温暖潮湿的环境。
Diseases of the time were mainly spread by water and the major contagious diseases were dysentery and malaria which were prevalent in most areas in the south of China.
其时的疫病主要通过水源扩散；重要的传染病为疟疾和瘴病，广泛流行于南方的大多数地区。
Malaria is infected by which is bited by mosquito and spread parasite to body.
疟疾是通过蚊虫叮咬向人体传播寄生虫而感染的。
Malaria is infected by which is bited by mosquito and spread parasite to body.
疟疾是通过蚊虫叮咬向人体传播寄生虫而感染的。
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