He is suffering from a chronic disease.

He had been fighting the demon of ill health for a long time.

He was confined to his sickbed for a long time.

This program operates in milliseconds.

My mother is taking care of a patient.

There are thumbtacks scattered on my desk.

Tularemia is highly infectious and can potentially infect humans as well.

His character has the power to seckill enemies.

He seckilled the enemy in the game.

My major is chemical engineering.