Interlaboratory comparison of a multiplex immunoassay that measures human serum IgG antibodies against six-group B streptococcus polysaccharides. Le Doare, K; Gaylord, MA; Anderson, AS; Andrews, N; Baker, CJ; Bolcen, S; Felek, A; Giardina, PC; Grube, CD; Hall, T; Tan, CY; Taylor, S; Kwatra, G; Gorringe, A. Human Vaccines and Immunotherapeutics. 2024; 20:2330138.

T-cell responses to ancestral SARS-CoV-2 and Omicron variant among unvaccinated pregnant and postpartum women living with and without HIV in South Africa. McMahon, WC; Kwatra, G; Izu, A; Jones, SA; Mbele, NJ; Jafta, N; Lala, R; Shalekoff, S; Tiemessen, CT; Madhi, SA; Nunes, MC. Scientific Reports. 2024; 14:20348.

Surface protein distribution in Group B Streptococcus isolates from South Africa and identifying vaccine targets through in silico analysis. Gent, V; Lu, YJ; Lukhele, S; Dhar, N; Dangor, Z; Hosken, N; Malley, R; Madhi, SA; Kwatra, G. Scientific Reports. 2024; 14:22665.

Prevalence of group B Streptococcus colonisation in mother-newborn dyads in low-income and middle-income south Asian and African countries: a prospective, observational study. Kwatra, G; Izu, A; Cutland, C; Akaba, G; Ali, MM; Ahmed, Z; Beck, MM; Barsosio, HC; Berkley, JA; Chaka, TE; Sahni, RD; Tapia, MD; Veeraraghavan, B; Madhi, SA. The Lancet Microbe. 2024; 5:100897.

Vaccine value profile for Klebsiella pneumoniae. Dangor, Z; Benson, N; Berkley, JA; Bielicki, J; Bijsma, MW; Broad, J; Buurman, ET; Cross, A; Duffy, EM; Holt, KE; Srikantiah, P; Tennant, SM; Hasso-Agopsowicz, M; Madhi, SA. Vaccine. 2024; 42:S125-S141.

Distributions of candidate vaccine Targets, virulence Factors, and resistance features of invasive group B Streptococcus using Whole-Genome Sequencing: A Multicenter, population-based surveillance study. Ji, W; Zhou, H; Li, J; Britto, CD; Liu, Z; Zhang, W; Du, J; Madhi, SA; Kwatra, G; Dangor, Z; Jin, Z; Zhao, H; Zhao, Y; Fang, Y; Li, J. Vaccine. 2024; 42:3564-3571.

Post-acute sequelae of SARS-CoV-2 infection in health care workers from South Africa. Mbotwe-Sibanda, S; Kwatra, G; Madhi, SA; Nunes, MC. Oxford Open Immunology. 2024; 5:iqae001.

Prevalence and Levels of Anti-SARS-CoV-2 Antibodies in the Eswatini Population and Subsequent Severity of the Fourth COVID-19 Epidemic Wave. Mutevedzi, PC; Lokotfwako, V; Kwatra, G; Maphalala, G; Baillie, V; Dlamini, L; Dlamini, S; Mhlanga, F; Dlamini, T; Nhlabatsi, N; Nunes, MC; Zwane, S; Madhi, SA. 2024; 4:317-333.

Combinatorial multimer staining and spectral flow cytometry facilitate quantification and characterization of polysaccharide-specific B cell immunity. Hoving, D; Marques, AH C; Huisman, W; Nosoh, BA; de Kroon, AC; van Hengel, OR J; Wu, BR; Steenbergen, RA M; van Helden, PM; Urban, BC; Dhar, N; Ferreira, DM; Kwatra, G; Hokke, CH; Jochems, SP. Communications Biology. 2023; 6:1095.

Development of A Standardized Opsonophagocytosis Killing Assay for Group B Streptococcus and Assessment in an Interlaboratory Study. Leung, S; Collett, CF; Allen, L; Lim, S; Maniatis, P; Bolcen, SJ; Alston, B; Patel, PY; Kwatra, G; Hall, T; Thomas, S; Taylor, S; Le Doare, K; Gorringe, A. Vaccines. 2023; 11:1703.