Hand washing and wearing masks are important for the prevention of COVID-19.

Our lives have changed significantly due to the new coronavirus.

Our lives have changed significantly due to the impact of the coronavirus.

We installed fire alarms to defend our house against fire.

I couldn't get in touch with her for a week.

This new style smartphone has a lot of features.

We had to undergo a two-week quarantine due to the coronavirus.

We have to quarantine at home for two weeks to prevent the spread of the new coronavirus.

I am working remotely from my own home.

In astronomy, the corona refers to the outer atmosphere of the sun.