This table is very flat.

Taira is my best friend.

This country has entered a peaceful era.

We need to make a plan for the new coronavirus.

Hand washing and wearing masks are important for the prevention of severe acute respiratory syndrome.

The Ebola virus is a very infectious virus.

The poliovirus is a virus that primarily enters the body through the mouth and destroys the nervous system.

Norovirus can be prevented by hand washing and disinfection.

My computer got infected with a computer virus.

He is an expert in virology.