Ebola virus disease is highly infectious and can cause severe symptoms.

He was told by the doctor that he might have been infected with hydrophobia.

Because he has haemophilia, even a small wound causes him to bleed a lot.

He is suffering from the ouch-ouch disease.

I get motion sickness as soon as I get on a boat.

The unequal distribution in this society is becoming a problem.

In order to eliminate social unfairness, everyone must cooperate.

Marriage equality is an important indicator of social progress.

Marriage equality is an important indicator of social progress.

The study of filterable pathogens is an important part of virology.