The common cold

The video explains the common cold, a frequent illness caused by viruses. It details how these viruses spread through coughing, sneezing, or touching infected surfaces. The body's immune system responds by producing mucus and deploying white blood cells to fight the virus, causing symptoms like fever and tiredness. While medicines can alleviate symptoms, there is no cure for the cold. Eventually, the immune system overcomes the virus, restoring health until the next infection.

What is the primary cause of the common cold?

• Bacteria

• Viruses

• Parasites

• Fungi

How can you become infected with the cold virus?

• By sharing clothes

• By touching an infected surface and then your face

• By drinking unclean water

• By eating contaminated food

What substance does the immune system produce to block the virus?

• Mucus

• Sweat

• Saliva

• Tears

What is the role of white blood cells in fighting the cold virus?

• They produce mucus

• They cause sneezing

• They increase body temperature

• They destroy the virus

Why is there no cure for the common cold?

• The virus is not harmful enough to study

• The virus is resistant to all medicines

• The virus mutates rapidly

• The virus is too small to detect