Either side of a person infected with flu, as well as those sitting one roe in font of or behind this individual, had about an 80 person chance of getting sick.

Prior to the new study, little was known about the risks of getting directly infected by common respiratory viruses, such as the flu or common cold, on an airplane, the researchers said.

When the rats detect the smell, they stop and rub their legs to indicate a sample is infected.

L) The college admission essay contains the grandest American themes―status anxiety, parental piety (孝順), intellectual standards—and so it is only a matter of time before it becomes infected by the country's culture of excessive concern with self-esteem.

The Sudan version was deadly enough, killing 50% of those it infected.

If the virus had been capable of spreading through the air, or if one infected person had unknowingly entered a large population center, Ebola might have become a worldwide epidemic

How do people get infected with the disease according to the speaker?