Objestive: To in investigate conditions of Lyme disease and focus of natural infection in border area.

目的：调查边境地区莱姆病和自然疫源地的状况。

youdao

Horses are the only animal species in which natural infection of HeV has been reported, with a case fatality of approximately 75%.

马是据报天然感染亨德拉病毒的唯一动物，病死率约达75%。

youdao

Objective To explore the status of natural infection with Legionella Pneumophila and its transmission seasonality in population of Wuhu railway area.

目的了解芜湖铁路地区嗜肺性军团菌的自然感染情况及传播的季节性。

youdao

But those with weak natural defenses may develop a severe infection.

VOA: special.2009.05.26

You can become dehydrated and die just as a result of the loss of water there, because of your body's natural response to the infection.

就会脱水,而失水的后果就是死亡,这是你身体对于这种感染的自然反应

耶鲁公开课 - 生物医学工程探索课程节选

Natural measles infection, while not harmful to most children, carries a slight risk of permanent disability - or even death.

BBC: Childhood measles may protect from asthma

Both the change in the death rate and the change in the infection rate are partly a consequence of the natural flow and ebb of any epidemic infection.

ECONOMIST: AIDS

More broadly, the principle upon which immunisation is based - namely, exposure to a non-harmful version of the naturally occurring infection in order to induce a natural and protective immune response - can be seen to be a far more natural process than the drug- and surgery-based therapies most widely venerated as the main achievements of modern medicine.

BBC: 'The natural benefits of vaccines'