Study: NCT03802994

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Peripheral blood sample
Description: Peripheral blood samples (30-60 mL) will be collected at day 0 (pre-immune), day 7, and day 30 (4 weeks post-PPV23) for groups 1-4 and at days 366, 373 and 396 for group 5. In addition, day 5, and 10 blood samples will be obtained from a limited (n=10) number of elderly RT participants to determine the optimal time point for circulation of PPS-specific B cells. Yearly blood samples will be obtained thereafter for serum antibody and OPA analyses to test longevity of antibody and OPA responses. Samples obtained from days 0, 30 and yearly samples will be used for antibody titers and opsonophagocytic assays. Samples from day 0 (day of vaccination with PCV13) and day 7 will be used for flow cytometric analysis.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Peripheral blood sample
Description: Peripheral blood samples (30-60 mL) will be collected at day 0 (pre-immune), day 7, and day 30 (4 weeks post-PPV23) for groups 1-4 and at days 366, 373 and 396 for group 5. In addition, day 5, and 10 blood samples will be obtained from a limited (n=10) number of elderly RT participants to determine the optimal time point for circulation of PPS-specific B cells. Yearly blood samples will be obtained thereafter for serum antibody and OPA analyses to test longevity of antibody and OPA responses. Samples obtained from days 0, 30 and yearly samples will be used for antibody titers and opsonophagocytic assays. Samples from day 0 (day of vaccination with PCV13) and day 7 will be used for flow cytometric analysis.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Peripheral blood sample
Description: Peripheral blood samples (30-60 mL) will be collected at day 0 (pre-immune), day 7, and day 30 (4 weeks post-PPV23) for groups 1-4 and at days 366, 373 and 396 for group 5. In addition, day 5, and 10 blood samples will be obtained from a limited (n=10) number of elderly RT participants to determine the optimal time point for circulation of PPS-specific B cells. Yearly blood samples will be obtained thereafter for serum antibody and OPA analyses to test longevity of antibody and OPA responses. Samples obtained from days 0, 30 and yearly samples will be used for antibody titers and opsonophagocytic assays. Samples from day 0 (day of vaccination with PCV13) and day 7 will be used for flow cytometric analysis.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Peripheral blood sample
Description: Peripheral blood samples (30-60 mL) will be collected at day 0 (pre-immune), day 7, and day 30 (4 weeks post-PPV23) for groups 1-4 and at days 366, 373 and 396 for group 5. In addition, day 5, and 10 blood samples will be obtained from a limited (n=10) number of elderly RT participants to determine the optimal time point for circulation of PPS-specific B cells. Yearly blood samples will be obtained thereafter for serum antibody and OPA analyses to test longevity of antibody and OPA responses. Samples obtained from days 0, 30 and yearly samples will be used for antibody titers and opsonophagocytic assays. Samples from day 0 (day of vaccination with PCV13) and day 7 will be used for flow cytometric analysis.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Peripheral blood sample
Description: Peripheral blood samples (30-60 mL) will be collected at day 0 (pre-immune), day 7, and day 30 (4 weeks post-PPV23) for groups 1-4 and at days 366, 373 and 396 for group 5. In addition, day 5, and 10 blood samples will be obtained from a limited (n=10) number of elderly RT participants to determine the optimal time point for circulation of PPS-specific B cells. Yearly blood samples will be obtained thereafter for serum antibody and OPA analyses to test longevity of antibody and OPA responses. Samples obtained from days 0, 30 and yearly samples will be used for antibody titers and opsonophagocytic assays. Samples from day 0 (day of vaccination with PCV13) and day 7 will be used for flow cytometric analysis.