Understanding Viral Infections and Immune Response

The video tutorial explains how a viral infection begins with a sore throat and progresses as the virus multiplies in the body. It describes the body's immune system and its specialized cells that work together to combat the invading virus. The role of epithelial cells in the throat is highlighted, showing how the virus initially spreads without causing much harm. The tutorial concludes by emphasizing the rapid multiplication of viruses and the body's response to this threat.

What is the initial symptom described in the story?

• A stomach ache

• A sore throat

• A headache

• A fever

What happens if the virus is left unchecked in the body?

• It will cause a mild rash

• It will disappear on its own

• It will multiply and destroy cells

• It will strengthen the immune system

Which type of cell is mentioned as part of the immune system's defense?

• Red blood cells

• Muscle cells

• Epithelial cells

• Nerve cells

What is the initial reaction of the body to the virus in the throat?

• The body becomes feverish

• The body doesn't notice it

• The body immediately fights it

• The body develops a rash

What is the main problem with viruses according to the story?

• They are resistant to all treatments

• They are hard to detect

• They multiply rapidly

• They cause immediate pain