Drug Criteria & Outcomes-Types of vaccines

Active: Antigen is introduced so that the individual's immune system is stimulated to make the appropriate antibodies.

Passive: Preformed protective antibodies are transferred.

Those who should be vaccinated

- Children 12 months to 12 years old (routinely at 12 to 18 months of age)

- Adolescents and adults without history of chickenpox, especially:

• Health care workers

• Day care workers

• Teachers

• College students

• Military personnel

• Prisoners

• Nonpregnant women of childbearing age

• International travelers

• Family contacts of immunocompromised patients