Immune System Heroes: The Role of Antibiotics Antivirals and Vaccines

The video explains the immune system's role in defending against pathogens, detailing the body's three lines of defense. It covers how antibiotics target bacteria, the function of vaccines in building immunity, and the use of antivirals against viruses. The video also discusses pathogen mutation and the importance of herd immunity.

What is the primary role of the immune system?

• To protect against pathogens

• To digest food

• To regulate body temperature

• To produce energy for the body

Which cells are involved in the specific immune response?

• Red blood cells

• Lymphocytes

• Macrophages

• Platelets

What do antibiotics specifically target?

• Viruses

• Fungi

• Protists

• Bacteria

How do antibiotics help the immune system?

• By strengthening skin barriers

• By producing antibodies

• By destroying bacteria

• By increasing white blood cell count

What is the purpose of a vaccine?

• To cure diseases

• To expose the body to active pathogens

• To replace antibiotics

• To prevent disease by building immunity

What is herd immunity?

• A type of antibiotic resistance

• Immunity developed by individuals

• Protection for vulnerable populations through widespread vaccination

• A method of virus mutation

What do antivirals target?

• Bacteria

• Protists

• Viruses

• Fungi

Why is it challenging to develop antivirals?

• Viruses are not harmful

• Antivirals are too expensive

• Viruses use the host's cellular machinery

• Viruses do not replicate

What is a major challenge in combating pathogens?

• Pathogens do not evolve

• Pathogens are always beneficial

• Pathogens are easy to detect

• Pathogens can mutate and develop resistance

Why is a new flu vaccine needed each year?

• The flu is not a serious illness

• Vaccines expire quickly

• The flu virus mutates frequently

• The flu virus does not change