6.The conjugate vaccine against Streptococcus pneumoniae provides
a) sugar epitopes for T cells and B cell epitopes for the toxoid
b) sugar epitopes for the B cells and sugar epitopes for the T cells
c) toxoid-derived peptide epitopes for the T cells and sugar epitopes for the B cells
d) toxoid-derived peptide epitopes for the B cells and sugar epitopes for the T cells
7. An important immune defect which decreases the production of antibodies
a) Deficiency in C3 activation
b) Deficiency in C5-C9 activation
c) A defective protein in the NADP oxidase system as in Chronic Granulomatus Disease
d) A defective RAG protein
8. PPD is a diagnostic technique that allows detection of
a) TB-specific CD4 TH1 cells
b) TB-specific CD4 TH2 cells
c) naïve CD4 TH1 cells
d) naïve CD4 TH2 cells
e) mast cells
9. The inactivated vaccine against influenza induces influenza-specific
a) opsonizing antibodies
b) neutralizing antibodies
c) CD 8 T cells
d) CD 4 TH1 cells
e) gamma-delta T cells
.
10. Which of the following vaccines is attenuated?
a. sub-unit (capsule) vaccine against S. pneumoniae
b. conjugate vaccine against S. pneumoniae
c. inactivated influenza vaccine
d. inactivated RSV vaccine
e. BCG
11. Which one of the following statements concerning the pneumococcal conjugate vaccine is correct?
a. Composed of capsular polysaccharide from 23 serotypes of Streptococcus pneumonia
b. Non-immunogenic in children under two years of age
c. Composed of seven polysaccharide serotypes linked to a protein carrier
d. A T-independent antigen
e. A conjugate of pneumococcal surface protein A (PspA) and tetanus toxoid