
Virus
Disease Agent
A 'virus' in medical terms specifically refers to the cause of an illness, not just any germ.
Doctors identified the virus responsible for the outbreak.
Non-Physical Spread
'Virus' suggests transmission from one person to another, often without direct contact.
She was worried about how quickly the virus was spreading through the air.
Serious Tone
Using 'virus' in conversation usually implies a serious concern, not a minor ailment.
Since the virus can be fatal, everyone was advised to get vaccinated.