3.3.2 Advantages and Disadvantages

• Vaccination is the process of introducing weakened or dead pathogens into the body to stimulate the immune system and provide immunity
• Vaccines do not provide 100% protection
• Vaccination reduces the spread of infectious diseases in a population
• Vaccination saves lives by preventing serious and potentially fatal illnesses
• Why do some vaccines require repeated doses?

  Maintain immunity
• What are some common adverse reactions to vaccines?

  Fever, pain, swelling
• Vaccines often require repeated doses to maintain immunity
• Vaccination reduces the economic burden of treating infectious diseases.


  True
• Philosophical or religious objections may lead some people to refuse vaccination
• Vaccination provides immunity against diseases.


  True
• Vaccination saves lives by preventing serious illnesses.


  True
• How does vaccination provide immunity against diseases?

  Stimulates immune system
• Vaccinated individuals cannot contract the disease.

  False
• Adverse reactions are a common disadvantage of vaccination.

  True
• Vaccines provide 100% protection against infection.

  False
• What are some non-medical reasons people may object to vaccination?

  Philosophical or religious beliefs
• What happens to symptoms when vaccinated individuals contract a disease?

  Symptoms are milder
• The benefits of vaccination generally outweigh the potential drawbacks.


  True