El resfriado común

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

How can the common cold virus be transmitted from one person to another?

• Through contaminated food

• Through insect bites

• By touching infected surfaces and then touching your face

• By drinking unclean water

What is the role of mucus in the body's defense against the cold virus?

• It helps the virus to spread

• It acts as a barrier to prevent more virus from entering

• It provides nutrients to the virus

• It cools down the body

What does the immune system send out to destroy the cold virus?

• Platelets

• Red blood cells

• Antibodies

• White blood cells

Why is there no cure for the common cold?

• The virus is too small to detect

• The virus mutates too quickly

• Scientists have not made any efforts

• The virus is not harmful enough to warrant a cure

What can medication do for someone with a cold?

• Soothe symptoms like a blocked nose and sore throat

• Make the virus reproduce faster

• Prevent future colds

• Cure the cold completely