CNGB1 and malaria: Using spectral flow cytometry and unbiased clustering analysis, we assessed antigen-specific cTFH cell recall responses in vitro to malaria vaccine candidates Pf-schizont egress antigen-1 (PfSEA-1A) and Pf-glutamic acid-rich protein (PfGARP) within a cross-section of children and adults living in a malaria-holoendemic region of western Kenya.