它们通过被携带人类致病寄生虫的人类或动物感染的采采蝇(舌蝇属)叮咬传播给人类。
They are transmitted to humans by tsetse fly (Glossina genus) bites which have acquired their infection from human beings or from animals harbouring the human pathogenic parasites.
适应性免疫被认为是对具体的细菌，病毒，真菌和寄生虫的反应，而先天免疫一向被认为是身体对所有致病威胁的一般反应。
Whereas adaptive immunity is thought to be a response to specific bacteria, viruses, fungi and parasites, innate immunity has always been seen as the body's general response to all threats of disease.
锥虫属其它种和亚种的寄生虫对动物具有致病性并可在野生和家养动物种类中引起动物锥虫病。
Other parasite species and sub-species of the Trypanosoma genus are pathogenic to animals and cause animal trypanosomiasis in wild and domestic animal species.
三文鱼养殖业污染很严重：几千条鱼塞进鱼塘后，会导致病害和寄生虫的增加，就必须使用抗生素和杀虫剂。
Salmon farming is very polluting: Thousands of fish are crammed into pens, which leads to the growth of diseases and parasites that require antibiotics and pesticides.
含有致病性寄生虫、微生物的，或者微生物毒素含量超过国家限定标准的；
foods that contain pathogenic parasites, microorganisms or an amount of microbial toxin exceeding the tolerance prescribed by the State;
细菌，病毒，寄生虫或其他致病微生物也能以同样的方式感染的家禽和肉类可以感染鱼。
Bacteria, viruses, parasites or other disease-causing organisms also can infect fish in the same way that poultry and meat can be infected.
粪便中和被粪便污染的饮用水中，含有多种肠道传染病和寄生虫病的病原体，包括致病的病毒和虫卵，严重威胁农民的身体健康。
The excrement and the excrement polluted water carry a lot of pathogens of them including the diseaseful virus and worm eggs which threaten seriously the health of the habitants.
在寄生虫中，原虫的致病性往往比线虫的要高。
Among parasites, Protozoa are usually more pathogenic than nematodes.
前言：目的：综述我国常见食源性寄生虫病的感染、致病及防治的现状。
Objective: Review common food parasitosis infection, prevention and cure present situation in Chi-na.
前言：目的：综述我国常见食源性寄生虫病的感染、致病及防治的现状。
Objective: Review common food parasitosis infection, prevention and cure present situation in Chi-na.
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