1·Once this happens, blood appears in the vomit and faeces.
一旦出现此种症状，呕吐物和粪便中就会带血。
2·Similarly, it is no longer necessary to kill whales to work out what they have been eating, as this can be determined from DNA in samples of faeces.
同样的，现在也没有必要以杀死鲸鱼的方式来了解鲸鱼的摄食习性，因为这可从鲸鱼的粪便样本里的DNA中得知。
3·Epidemiological investigation identified a possible risk factor as exposure to wild bird faeces found around the house.
流行病学调查发现，接触其住房周围野禽的粪便可能是一个风险因素。
4·The source of exposure for the initial case is still under investigation, with exposure to infected poultry or an environment contaminated by their faeces considered the most plausible source.
该最初病例的接触源仍在调查之中，接触受感染的家禽或受其粪便污染的环境被认为似乎是最合理的接触源。
5·Good hygienic slaughtering practices reduce the contamination of carcasses by faeces, but will not guarantee the absence of Campylobacter from meat and meat products.
良好的卫生屠宰规范可减少粪便对动物尸体造成的污染，但并不会保证在肉类和肉制品中完全没有弯曲杆菌。