Illness cut short his vacation.

His absence was due to illness.

My father got well again.

Father has lost his job, and what's worse, Mother has fallen ill.

He took no notice that there was a sick man sleeping in the next room.

The old lady has been rather feeble since her illness.

Finally, the sick, tired men reached the mountain town where he was waiting.

The patient is getting worse and worse day by day.

Fundamentally, you're not practicing anything by translating, so even if you say that you can't do it, once you've set your sights on a similar sentence you've seen before that is more natural yet does not quite convey the original sentence's nuances, translation proves to be an act that is quite addicting.

Thousands of people died during the plague.

If long-term beds are reduced, then it won't be possible to do that and normal sickbeds will also be adversely affected.

My elbow really hurts. I guess I should go to a hospital.

An epidemic disease broke out.

You had better take this medicine if you want to get well.

She is absent because of sickness.