BIOL202 Micro Vaccines Case Study

How do inactivated vaccines work to provide immunity?

• They use live pathogens that are weakened.

• They use pathogens that have been killed or inactivated.

• They use only the genetic material of the pathogen.

• They use a harmless virus to deliver pathogen genes.

What is the primary mechanism by which attenuated vaccines provide immunity?

• They stimulate the immune system using dead pathogens.

• They use a harmless virus to deliver pathogen genes.

• They use live pathogens that are weakened.

• They use only the protein components of the pathogen.

Which of the following best describes how purified component vaccines work?

• They use live, weakened pathogens to stimulate immunity.

• They use only specific parts of the pathogen, like proteins or sugars.

• They use the entire pathogen in a killed form.

• They use genetic material to produce an immune response.

How do DNA/RNA vector vaccines function to protect against diseases?

• They use live, weakened pathogens to stimulate immunity.

• They use a harmless virus to deliver pathogen genes.

• They use only the protein components of the pathogen.

• They use the entire pathogen in a killed form.

What is herd immunity and how does it help in controlling the spread of pathogens?

• It is the immunity developed by individuals who have been vaccinated, which prevents them from getting sick.

• It is the resistance to the spread of a contagious disease within a population that results if a sufficiently high proportion of individuals are immune to the disease.

• It is the immunity that results from the use of live, attenuated vaccines.

• It is the immunity that results from the use of inactivated vaccines.