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Fig. 2 | BMC Infectious Diseases

Fig. 2

From: Long-term quantitative assessment of anti-SARS-CoV-2 spike protein immunogenicity (QUASI) after COVID-19 vaccination in older people living with HIV (PWH)

Fig. 2

Immunologic T cell subset testing. a SARS-CoV-2-specific T cell response after intracellular cytokine staining assay (ICS, 6 h). Cytokine production was defined as IFγ+TNFα–, IFγ+TNFα+ and IFγ-TNFα+ combined. Cytokine production was measured within live CD3+CD4+CD8- cells for CD4 response and live CD3+CD4-CD8+ cells for CD8 response. b SARS-CoV-2-specific T cells after activation induced marker assay (AIM, 20 h). SARS-CoV-2-specific CD4 T cells and CD8 T cells were defined as live CD3+CD4+CD8-OX40+CD137+ cells and CD3+CD4+CD8-CD69+CD137+ cells, respectively

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BMC Infectious Diseases

ISSN: 1471-2334

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