This lake is known as a dangerous body of water.

He is an expert in virology.

My computer got infected with a computer 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.

Please use the emergency stairs in case of a fire.

Due to the earthquake, the city declared a state of emergency.

Ebola hemorrhagic fever is a highly infectious disease.

Ebola hemorrhagic fever is a highly infectious disease.

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