Understanding Vaccines and the Immune System

The video explores the history and science of vaccines, starting with Edward Jenner's pioneering work on the smallpox vaccine. It explains how the immune system defends against diseases and how vaccines prepare the body by triggering an immune response without causing the full disease. Various types of vaccines, including live attenuated, inactive, and subunit vaccines, are discussed, along with their benefits and limitations. The video also introduces DNA vaccines, highlighting their potential to revolutionize treatments for diseases like HIV, malaria, and Ebola.

Who was the scientist that created the first vaccine?

• Louis Pasteur

• Edward Jenner

• Alexander Fleming

• Robert Koch

What was the first vaccine made from?

• Rabies virus

• Cowpox virus

• Smallpox virus

• Polio virus

What are the signs that the immune response is working?

• Headache and nausea

• Rash and itching

• Coughing and sneezing

• Fatigue and dizziness

What is the second line of defense in the immune system called?

• Active immunity

• Passive immunity

• Adaptive immunity

• Innate immunity

Which cells are involved in the adaptive immune response?

• Red blood cells

• Platelets

• Neurons

• B cells and T cells

What is the main purpose of vaccines?

• To replace the immune system

• To prepare the immune system

• To cure diseases

• To weaken the immune system

What type of vaccine uses a weakened form of the pathogen?

• DNA vaccine

• Live attenuated vaccine

• Subunit vaccine

• Inactive vaccine

Which type of vaccine is made from killed pathogens?

• DNA vaccine

• Subunit vaccine

• Inactive vaccine

• Live attenuated vaccine

What is the main component of a subunit vaccine?

• Antigen

• RNA

• DNA

• Whole pathogen

What is the potential future benefit of DNA vaccines?

• They can replace traditional vaccines

• They can weaken the immune system

• They can create stronger immune responses

• They can cure all diseases