Vaccines How Do They Work

A/an __________ is an injection of a weekened form of a pathogen to help the individual gain immunity from a disease.

• Virus

• Vacuum

• Vaccine

• Antibiotics

Which of these is NOT a sign that the body is fighting a pathogen?

• Fever

• Coughing

• Bleeding

• Sneezing

Which of these would never be included in a vaccine, due to its potential to cause illness/disease?

• Weekened Virus

• Fully deactivated virus

• Partial virus

• Complete, fully active virus

True/False: Sometimes vaccines need boosters to remain effective.

• False

• True

Vaccines work because the immune system saves the information in the:

• Memory cells

• Effector cells

• Leukocytes

• Red blood cells

The vaccines trigger the immune system creating specific ______________ for the pathogen.

• Antigens

• Medicine

• Antibodies

• Cells

A pathogen is a disease-causing agent.

• True

• False

Vaccines contain weakened or dead parts of antigens. 

• True

• False

Which one is a way the body defends against a pathogen?

• Fever

• White Blood Cells fighing

• Stomach Acid digesting

• All of these are correct

Are viruses cells?

• Yes

• No

• Sometimes

• Maybe