QUeSTiONS aND CORReCT DeTaileD DeTaileD aNSWeRS (VeRiFieD
DeTaileD aNSWeRS)
|alReaDY GRaDeD a+
Inactive Viral Antigen - DeTaileD aNSWeR-Hep A, Hep B, Influenza (inactivated), Poliovirus.
Herd Immunity - DeTaileD aNSWeR-The resistance to an infectious organism because a large
group of people is immune to the infectious organism through immunization/vaccine. Herd or
Community immunity is contingent on the likelihood individuals are prone to the infection will
encounter the infected person. For example, most the people in the community are immune to
an infectious disease, which means everyone does not need immunity to prevent the spread of
the infection.
Active Immunity - DeTaileD aNSWeR-When the immune system produce antibodies in
response to an antigen by the vaccine, or by the infection itself. For example, if a person who
has never had hepatitis B contracts Hep B and recovers from it, that person becomes immune
to Hep B because of the immune system's antibody response to the hepatitis B virus.
Passive Immunity - DeTaileD aNSWeR-occurs naturally. This type of immunity is passed on
when an antibody is produced in another host. For example, immunity is passed on from a
mother to her infant or by artificial administration of antibody-containing formulations.
Tdap Vaccine - DeTaileD aNSWeR-given to adolescents > 10 years old and adults
Tdap contraindications - DeTaileD aNSWeR-if a prior vaccination with DTap produced an
immediate anaphylactic reaction or encephalopathy within 7 days of vaccination.