Viruses 3 - Jones

Front

What is a virus?

Back

A virus is a tiny infectious agent that can only replicate inside the living cells of an organism.

Front

How do viruses reproduce?

Back

Viruses can reproduce only by infecting a host cell and using the cell's machinery to make copies of themselves.

Front

What happens to a host cell after a virus infects it?

Back

Often, the host cell dies after the virus takes over its functions.

Front

What is a vaccine?

Back

A vaccine is a substance that stimulates the body's immune response against viruses, often made from dead or weakened viruses.

Front

Can antibiotics cure viral infections?

Back

No, antibiotics are effective against bacteria, not viruses.

Front

What is the role of the immune system in fighting viruses?

Back

The immune system identifies and destroys viruses that invade the body.

Front

What are some common ways viruses spread?

Back

Viruses can spread through direct contact, respiratory droplets, and contaminated surfaces.

Front

What is the difference between a live vaccine and an inactivated vaccine?

Back

A live vaccine contains a weakened form of the virus, while an inactivated vaccine contains killed viruses.

Front

Why are vaccines important in public health?

Back

Vaccines help prevent the spread of infectious diseases and protect communities by achieving herd immunity.

Front

What is a viral infection?

Back

A viral infection occurs when a virus enters the body, multiplies, and causes illness.