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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Ismail N, Moultrie H, Mwansa-Kambafwile J, Copas A, Izu A, Moyo S, Skinner D, Ismail F, Gosce L, Omar SV, Abubakar I, Madhi SA. Effects of conditional cash transfers and pre-test and post-test tuberculosis counselling on patient outcomes and loss to follow-up across the continuum of care in South Africa: a randomised controlled trial. Lancet Infect Dis. 2025 Feb 06. PMID: 39923785.
      Citations:    Fields:    
    2. Izu A, Mutsaerts EA, Olwagen C, Jose L, Koen A, Nana AJ, Cutland CL, Madhi SA. Serotype-specific serum immunoglobulin G at 18 months of age following one or two doses of a primary series of 10-valent or 13-valent pneumococcal conjugate vaccine and a booster dose at nine months of age: a randomized controlled study. Expert Rev Vaccines. 2025 Dec; 24(1):121-127. PMID: 39865559.
      Citations:    Fields:    
    3. Olwagen CP, Izu A, Van der Merwe L, Jose L, Koen A, Madhi SA. Single priming and a booster dose of 10-valent and 13-valent pneumococcal conjugate vaccine (PCV) maintains suppression of vaccine serotype colonization in South African children at 3, 4, and 5 years of age: a single-centre, open-labelled, randomized trial. Expert Rev Vaccines. 2024 Jan-Dec; 23(1):1011-1019. PMID: 39417218.
      Citations:    Fields:    
    4. Mrubata KL, Bailie V, Solomon F, Izu A, Ncube M, Nunes MC, Dangor Z, Madhi SA, Moore DP, Verwey C. Impact of Respiratory Syncytial Virus and Severe Acute Respiratory Syndrome Coronavirus 2 Coinfection on Clinical Severity and Outcomes Among Children Hospitalized With Lower Respiratory Tract Infections in Soweto, South Africa. Pediatr Infect Dis J. 2025 Feb 01; 44(2):107-111. PMID: 39733274; PMCID: PMC11731058.
      Citations:    Fields:    
    5. McMahon WC, Kwatra G, Izu A, Jones SA, Mbele NJ, Jafta N, Lala R, Shalekoff S, Tiemessen CT, Madhi SA, Nunes MC. 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. Sci Rep. 2024 09 02; 14(1):20348. PMID: 39223211; PMCID: PMC11369237.
      Citations:    Fields:    Translation:HumansCells
    6. Kwatra G, Izu A, Cutland C, Akaba G, Ali MM, Ahmed Z, Beck MM, Barsosio HC, Berkley JA, Chaka TE, Cossa A, Chakraborty S, Dhar N, Dorji P, Islam M, Keita AM, Mwakio S, Mwarumba S, Medugu N, Mucavele H, Mabombo V, Obaro S, Siga?que B, Sow SO, Saha SK, Santhanam S, Sharma R, Simoes EAF, Sahni RD, Tapia MD, Veeraraghavan B, Madhi SA. 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. Lancet Microbe. 2024 Aug 20; 100897. PMID: 39178870.
      Citations:    Fields:    Translation:HumansCellsPHPublic Health
    7. Feng S, McLellan J, Pidduck N, Roberts N, Higgins JP, Choi Y, Izu A, Jit M, Madhi SA, Mulholland K, Pollard AJ, Procter S, Temple B, Voysey M. Immunogenicity and seroefficacy of pneumococcal conjugate vaccines: a systematic review and network meta-analysis. Health Technol Assess. 2024 Jul; 28(34):1-109. PMID: 39046101; PMCID: PMC11284620.
      Citations:    Fields:    Translation:HumansCells
    8. Le Doare K, Gaylord MA, Anderson AS, Andrews N, Baker CJ, Bolcen S, Felek A, Giardina PC, Grube CD, Hall T, Hallis B, Izu A, Madhi SA, Maniatis P, Matheson M, Mawas F, McKeen A, Rhodes J, Alston B, Patel P, Schrag S, Simon R, Tan CY, Taylor S, Kwatra G, Gorringe A. Interlaboratory comparison of a multiplex immunoassay that measures human serum IgG antibodies against six-group B streptococcus polysaccharides. Hum Vaccin Immunother. 2024 Dec 31; 20(1):2330138. PMID: 38608170; PMCID: PMC11018077.
      Citations: 1     Fields:    Translation:HumansCells
    9. Cutland CL, Sawry S, Fairlie L, Barnabas S, Frajzyngier V, Roux JL, Izu A, Kekane-Mochwari KE, Vika C, De Jager J, Munson S, Jongihlati B, Stark JH, Absalon J. Obstetric and neonatal outcomes in South Africa. Vaccine. 2024 Feb 27; 42(6):1352-1362. PMID: 38310014.
      Citations:    Fields:    Translation:Humans
    10. Olwagen CP, Downs SL, Izu A, Tharasimbi L, Van Der Merwe L, Nunes MC, Madhi SA. Bacterial nasopharyngeal colonisation in children in South Africa before and during the COVID-19 pandemic: an observational study. Lancet Microbe. 2024 01; 5(1):e34-e42. PMID: 38048806; PMCID: PMC10789613.
      Citations: 1     Fields:    Translation:HumansCellsPHPublic Health
    11. Makhema J, Shava E, Izu A, Gaolathe T, Kuate L, Walker A, Carty L, Georgiou P, Kgathi C, Choga WT, Sekoto T, Seonyatseng N, Mogashoa T, Maphorisa CN, Mohammed T, Ntalabgwe T, Frank TT, Matlhaku B, Diphoko A, Phindela T, Kaunda A, Kgari P, Kanyakula T, Palalani G, Phakedi I, Mmalane M, Taylor S, Moyo S. Safety of AZD1222 COVID-19 vaccine and low Incidence of SARS-CoV-2 infection in Botswana following ChAdOx1(AZD1222) vaccination: A single-arm open-label interventional study - final study results. IJID Reg. 2024 Mar; 10:35-43. PMID: 38090729; PMCID: PMC10714336.
      Citations:    
    12. Khan M, Solomon F, Izu A, Bengura P, Okudo G, Maroane B, Lala N, Dangor Z. The burden of poisoning in children hospitalised at a tertiary-level hospital in South Africa. Front Public Health. 2023; 11:1279036. PMID: 37927861; PMCID: PMC10623415.
      Citations: 1     Fields:    Translation:Humans
    13. Madhi SA, Anderson AS, Absalon J, Radley D, Simon R, Jongihlati B, Strehlau R, van Niekerk AM, Izu A, Naidoo N, Kwatra G, Ramsamy Y, Said M, Jones S, Jose L, Fairlie L, Barnabas SL, Newton R, Munson S, Jefferies Z, Pavliakova D, Silmon de Monerri NC, Gomme E, Perez JL, Scott DA, Gruber WC, Jansen KU. Potential for Maternally Administered Vaccine for Infant Group B Streptococcus. N Engl J Med. 2023 Jul 20; 389(3):215-227. PMID: 37467497.
      Citations: 18     Fields:    Translation:HumansCellsCTClinical Trials
    14. Feng S, McLellan J, Pidduck N, Roberts N, Higgins JPT, Choi Y, Izu A, Jit M, Madhi SA, Mulholland K, Pollard AJ, Temple B, Voysey M. Immunogenicity and seroefficacy of 10-valent and 13-valent pneumococcal conjugate vaccines: a systematic review and network meta-analysis of individual participant data. EClinicalMedicine. 2023 Jul; 61:102073. PMID: 37425373; PMCID: PMC10328810.
      Citations:    
    15. Madhi SA, Izu A. Safety of COVID-19 booster dose: is the juice worth the squeeze? Lancet Infect Dis. 2023 10; 23(10):1097-1099. PMID: 37352876; PMCID: PMC10281642.
      Citations: 1     Fields:    Translation:Humans
    16. Kaplonek P, Cizmeci D, Kwatra G, Izu A, Lee JS, Bertera HL, Fischinger S, Mann C, Amanat F, Wang W, Koen AL, Fairlie L, Cutland CL, Ahmed K, Dheda K, Barnabas SL, Bhorat QE, Briner C, Krammer F, Saphire EO, Gilbert SC, Lambe T, Pollard AJ, Nunes M, Wuhrer M, Lauffenburger DA, Madhi SA, Alter G. ChAdOx1 nCoV-19 (AZD1222) vaccine-induced Fc receptor binding tracks with differential susceptibility to COVID-19. Nat Immunol. 2023 07; 24(7):1161-1172. PMID: 37322179; PMCID: PMC10307634.
      Citations: 8     Fields:    Translation:HumansCellsPHPublic Health
    17. Izu A, Nunes MC, Solomon F, Baillie V, Serafin N, Verwey C, Moore DP, Laubscher M, Ncube M, Olwagen C, Dangor Z, Madhi SA. All-cause and pathogen-specific lower respiratory tract infection hospital admissions in children younger than 5 years during the COVID-19 pandemic (2020-22) compared with the pre-pandemic period (2015-19) in South Africa: an observational study. Lancet Infect Dis. 2023 09; 23(9):1031-1041. PMID: 37141913; PMCID: PMC10151031.
      Citations: 13     Fields:    Translation:HumansCellsPHPublic Health
    18. Koen AL, Izu A, Baillie V, Kwatra G, Cutland CL, Fairlie L, Padayachee SD, Dheda K, Barnabas SL, Bhorat QE, Briner C, Ahmed K, Bhikha S, Bhiman JN, du Plessis J, Esmail A, Horne E, Hwa SH, Oommen-Jose A, Lambe T, Laubscher M, Malahleha M, Benade G, McKenzie S, Oelofse S, Patel F, Pillay S, Rhead S, Rodel H, Taoushanis C, Tegally H, Thombrayil A, Villafana TL, Gilbert S, Pollard AJ, Madhi SA. Efficacy of primary series AZD1222 (ChAdOx1 nCoV-19) vaccination against SARS-CoV-2 variants of concern: Final analysis of a randomized, placebo-controlled, phase 1b/2 study in South African adults (COV005). Vaccine. 2023 05 26; 41(23):3486-3492. PMID: 37149443; PMCID: PMC10133888.
      Citations: 1     Fields:    Translation:HumansCellsPHPublic HealthCTClinical Trials
    19. Olwagen CP, Izu A, Mutsaerts EAML, Jose L, Koen A, Downs SL, Van Der Merwe L, Laubscher M, Nana AJ, Moultrie A, Cutland CL, Dorfman JR, Madhi SA. Single priming and booster dose of ten-valent and 13-valent pneumococcal conjugate vaccines and Streptococcus pneumoniae colonisation in children in South Africa: a single-centre, open-label, randomised trial. Lancet Child Adolesc Health. 2023 05; 7(5):326-335. PMID: 36934731; PMCID: PMC10127219.
      Citations: 1     Fields:    Translation:HumansCells
    20. Shava E, Izu A, Gaolathe T, Walker A, Carty L, Georgiou P, Kuate L, Kgathi C, Sekoto T, Seonyatseng N, Mogashoa T, Maphorisa C, Mohammed T, Ntalabgwe T, Frank TT, Matlhaku B, Diphoko A, Phindela T, Kaunda A, Kgari P, Kanyakula T, Palalani G, Phakedi I, (Botswana AZD1222 study team), Taylor S, Mmalane M, Moyo S, Makhema J. Safety and incidence of COVID-19 following ChAdOx1(AZD1222) COVID-19 vaccination in Botswana. J Infect. 2023 06; 86(6):603-606. PMID: 36863535; PMCID: PMC9974206.
      Citations: 1     Fields:    Translation:HumansPHPublic Health
    21. Madhi SA, Kwatra G, Myers JE, Jassat W, Dhar N, Mukendi CK, Blumberg L, Welch R, Izu A, Mutevedzi PC. Sustained Low Incidence of Severe and Fatal COVID-19 Following Widespread Infection Induced Immunity after the Omicron (BA.1) Dominant in Gauteng, South Africa: An Observational Study. Viruses. 2023 02 21; 15(3). PMID: 36992306; PMCID: PMC10054630.
      Citations: 3     Fields:    Translation:HumansCells
    22. Dangor Z, Kwatra G, Pawlowski A, Fisher PB, Izu A, Lala SG, Johansson-Lindbom B, Madhi SA. Association of infant Rib and Alp1 surface protein N-terminal domain immunoglobulin G and invasive Group B Streptococcal disease in young infants. Vaccine. 2023 03 03; 41(10):1679-1683. PMID: 36754766; PMCID: PMC9996286.
      Citations: 2     Fields:    Translation:HumansCells
    23. Smith M, Kwatra G, Izu A, Nel A, Cutland C, Ahmed K, Baillie V, Barnabas S, Bhorat Q, Briner C, Lazarus E, Dheda K, Fairlie L, Koen A, Madhi S, Blackburn JM. Longitudinal IgA and IgG Response, and ACE2 Binding Blockade, to Full-Length SARS-CoV-2 Spike Protein Variants in a Population of Black PLWH Vaccinated with ChAdOx1 nCoV-19. Viruses. 2023 02 06; 15(2). PMID: 36851662; PMCID: PMC9965153.
      Citations:    Fields:    Translation:HumansCellsPHPublic Health
    24. McMahon WC, Kwatra G, Izu A, Koen AL, Greffrath J, Fairlie L, Patel F, Mukendi CK, Mbele NJ, Lala R, Burgers WA, Nunes MC, Cutland CL, Gilbert SC, Lambe T, Pollard AJ, Madhi SA. T-cell responses induced by ChAdOx1 nCoV-19 (AZD1222) vaccine to wild-type severe acute respiratory syndrome coronavirus 2 among people with and without HIV in South Africa. AIDS. 2023 01 01; 37(1):105-112. PMID: 36476455.
      Citations: 2     Fields:    Translation:HumansCells
    25. Madhi SA, Kwatra G, Richardson SI, Koen AL, Baillie V, Cutland CL, Fairlie L, Padayachee SD, Dheda K, Barnabas SL, Bhorat QE, Briner C, Ahmed K, Aley PK, Bhikha S, Bhorat AE, Esmail A, Horne E, Kaldine H, Mukendi CK, Madzorera VS, Manamela NP, Masilela M, Hermanus ST, Motlou T, Mzindle N, Oelofse S, Patel F, Rhead S, Rossouw L, Taoushanis C, van Eck S, Lambe T, Gilbert SC, Pollard AJ, Moore PL, Izu A. Durability of ChAdOx1 nCoV-19 (AZD1222) vaccine and hybrid humoral immunity against variants including omicron BA.1 and BA.4 6 months after vaccination (COV005): a post-hoc analysis of a randomised, phase 1b-2a trial. Lancet Infect Dis. 2023 03; 23(3):295-306. PMID: 36273491; PMCID: PMC9584570.
      Citations: 15     Fields:    Translation:HumansCellsPHPublic HealthCTClinical Trials
    26. Gilbert PB, Isbrucker R, Andrews N, Goldblatt D, Heath PT, Izu A, Madhi SA, Moulton L, Schrag SJ, Shang N, Siber G, Sobanjo-Ter Meulen A. Methodology for a correlate of protection for group B Streptococcus: Report from the Bill & Melinda Gates Foundation workshop held on 10 and 11 February 2021. Vaccine. 2022 07 30; 40(32):4283-4291. PMID: 35779963; PMCID: PMC11299424.
      Citations: 5     Fields:    Translation:HumansCellsPHPublic Health
    27. Ramocha LM, van den Hoogen BG, Baillie V, van Nieuwkoop S, Cutland CL, Jones S, Moultrie A, Izu A, Verwey C, Madhi SA, Dorfman JR. Fetal Transfer of Human Metapneumovirus-Neutralizing Antibodies Is Reduced From Mothers Living With HIV-1. J Pediatric Infect Dis Soc. 2022 Apr 07. PMID: 35390156.
      Citations:    Fields:    Translation:HumansCells
    28. Izu A, Kwatra G, Madhi SA, Rigat F. Estimation of invasive Group B Streptococcus disease risk in young infants from case-control serological studies. BMC Med Res Methodol. 2022 03 27; 22(1):85. PMID: 35350991; PMCID: PMC8961496.
      Citations:    Fields:    Translation:HumansCells
    29. Car KP, Nakwa F, Solomon F, Velaphi SC, Tann CJ, Izu A, Lala SG, Madhi SA, Dangor Z. The association between early-onset sepsis and neonatal encephalopathy. J Perinatol. 2022 Mar; 42(3):354-358. PMID: 35001084.
      Citations: 6     Fields:    Translation:Humans
    30. Dangor Z, Kwatra G, Izu A, Khan M, Lala SG, Madhi SA. Infant serotype specific anti-capsular immunoglobulin G antibody and risk of invasive group B Streptococcal disease. Vaccine. 2021 11 16; 39(47):6813-6816. PMID: 34688499.
      Citations: 5     Fields:    Translation:HumansCells
    31. Madhi SA, Izu A, Kwatra G, Jones S, Dangor Z, Wadula J, Moultrie A, Adam Y, Pu W, Henry O, Briner C, Cutland CL. Association of Group B Streptococcus (GBS) Serum Serotype-Specific Anticapsular Immunoglobulin G Concentration and Risk Reduction for Invasive GBS Disease in South African Infants: An Observational Birth-Cohort, Matched Case-Control Study. Clin Infect Dis. 2021 09 07; 73(5):e1170-e1180. PMID: 33341870.
      Citations: 8     Fields:    Translation:HumansCells
    32. Madhi SA, Koen AL, Izu A, Fairlie L, Cutland CL, Baillie V, Padayachee SD, Dheda K, Barnabas SL, Bhorat QE, Briner C, Aley PK, Bhikha S, Hermanus T, Horne E, Jose A, Kgagudi P, Lambe T, Masenya M, Masilela M, Mkhize N, Moultrie A, Mukendi CK, Moyo-Gwete T, Nana AJ, Nzimande A, Patel F, Rhead S, Taoushanis C, Thombrayil A, van Eck S, Voysey M, Villafana TL, Vekemans J, Gilbert SC, Pollard AJ, Moore PL, Kwatra G, Wits VIDA COVID team. Safety and immunogenicity of the ChAdOx1 nCoV-19 (AZD1222) vaccine against SARS-CoV-2 in people living with and without HIV in South Africa: an interim analysis of a randomised, double-blind, placebo-controlled, phase 1B/2A trial. Lancet HIV. 2021 09; 8(9):e568-e580. PMID: 34416193; PMCID: PMC8372504.
      Citations: 81     Fields:    Translation:HumansCellsPHPublic HealthCTClinical Trials
    33. Madhi SA, Izu A, Pollard AJ. ChAdOx1 nCoV-19 Vaccine Efficacy against the B.1.351 Variant. Reply. N Engl J Med. 2021 08 05; 385(6):571-572. PMID: 34289271.
      Citations: 15     Fields:    Translation:HumansCells
    34. Mangeni NS, Solomon F, Velaphi S, Izu A, Madhi SA, Dangor Z, Lala SG. Sepsis in previously healthy neonates discharged home after delivery in Soweto, South Africa. S Afr Med J. 2021 04 30; 111(5):432-436. PMID: 34852884.
      Citations:    Fields:    Translation:HumansCells
    35. Madhi SA, Baillie V, Cutland CL, Voysey M, Koen AL, Fairlie L, Padayachee SD, Dheda K, Barnabas SL, Bhorat QE, Briner C, Kwatra G, Ahmed K, Aley P, Bhikha S, Bhiman JN, Bhorat AE, du Plessis J, Esmail A, Groenewald M, Horne E, Hwa SH, Jose A, Lambe T, Laubscher M, Malahleha M, Masenya M, Masilela M, McKenzie S, Molapo K, Moultrie A, Oelofse S, Patel F, Pillay S, Rhead S, Rodel H, Rossouw L, Taoushanis C, Tegally H, Thombrayil A, van Eck S, Wibmer CK, Durham NM, Kelly EJ, Villafana TL, Gilbert S, Pollard AJ, de Oliveira T, Moore PL, Sigal A, Izu A, NGS-SA Group, Wits-VIDA COVID Group. Efficacy of the ChAdOx1 nCoV-19 Covid-19 Vaccine against the B.1.351 Variant. N Engl J Med. 2021 05 20; 384(20):1885-1898. PMID: 33725432; PMCID: PMC7993410.
      Citations: 739     Fields:    Translation:HumansCellsCTClinical Trials
    36. Voysey M, Costa Clemens SA, Madhi SA, Weckx LY, Folegatti PM, Aley PK, Angus B, Baillie VL, Barnabas SL, Bhorat QE, Bibi S, Briner C, Cicconi P, Clutterbuck EA, Collins AM, Cutland CL, Darton TC, Dheda K, Dold C, Duncan CJA, Emary KRW, Ewer KJ, Flaxman A, Fairlie L, Faust SN, Feng S, Ferreira DM, Finn A, Galiza E, Goodman AL, Green CM, Green CA, Greenland M, Hill C, Hill HC, Hirsch I, Izu A, Jenkin D, Joe CCD, Kerridge S, Koen A, Kwatra G, Lazarus R, Libri V, Lillie PJ, Marchevsky NG, Marshall RP, Mendes AVA, Milan EP, Minassian AM, McGregor A, Mujadidi YF, Nana A, Padayachee SD, Phillips DJ, Pittella A, Plested E, Pollock KM, Ramasamy MN, Ritchie AJ, Robinson H, Schwarzbold AV, Smith A, Song R, Snape MD, Sprinz E, Sutherland RK, Thomson EC, Török ME, Toshner M, Turner DPJ, Vekemans J, Villafana TL, White T, Williams CJ, Douglas AD, Hill AVS, Lambe T, Gilbert SC, Pollard AJ, Oxford COVID Vaccine Trial Group. Single-dose administration and the influence of the timing of the booster dose on immunogenicity and efficacy of ChAdOx1 nCoV-19 (AZD1222) vaccine: a pooled analysis of four randomised trials. Lancet. 2021 03 06; 397(10277):881-891. PMID: 33617777; PMCID: PMC7894131.
      Citations: 657     Fields:    Translation:HumansCells
    37. Voysey M, Clemens SAC, Madhi SA, Weckx LY, Folegatti PM, Aley PK, Angus B, Baillie VL, Barnabas SL, Bhorat QE, Bibi S, Briner C, Cicconi P, Collins AM, Colin-Jones R, Cutland CL, Darton TC, Dheda K, Duncan CJA, Emary KRW, Ewer KJ, Fairlie L, Faust SN, Feng S, Ferreira DM, Finn A, Goodman AL, Green CM, Green CA, Heath PT, Hill C, Hill H, Hirsch I, Hodgson SHC, Izu A, Jackson S, Jenkin D, Joe CCD, Kerridge S, Koen A, Kwatra G, Lazarus R, Lawrie AM, Lelliott A, Libri V, Lillie PJ, Mallory R, Mendes AVA, Milan EP, Minassian AM, McGregor A, Morrison H, Mujadidi YF, Nana A, O'Reilly PJ, Padayachee SD, Pittella A, Plested E, Pollock KM, Ramasamy MN, Rhead S, Schwarzbold AV, Singh N, Smith A, Song R, Snape MD, Sprinz E, Sutherland RK, Tarrant R, Thomson EC, Török ME, Toshner M, Turner DPJ, Vekemans J, Villafana TL, Watson MEE, Williams CJ, Douglas AD, Hill AVS, Lambe T, Gilbert SC, Pollard AJ, Oxford COVID Vaccine Trial Group. Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK. Lancet. 2021 01 09; 397(10269):99-111. PMID: 33306989; PMCID: PMC7723445.
      Citations: 2634     Fields:    Translation:Humans
    38. Naidu G, Izu A, Madimabe MR, Poyiadjis S, MacKinnon D, Rowe B, Madhi SA. Burden of Tuberculosis in South African Children During Treatment for Underlying Malignancies: A Single-center Experience in Johannesburg. Pediatr Infect Dis J. 2020 12; 39(12):1111-1115. PMID: 33165271.
      Citations:    Fields:    Translation:Humans
    39. Naidu G, Izu A, Poyiadjis S, MacKinnon D, Rowe B, Madhi SA. High Burden of Serious Bacterial Infections in African Children Treated for Cancer. Pediatr Infect Dis J. 2020 10; 39(10):943-948. PMID: 32453195.
      Citations: 1     Fields:    Translation:Humans
    40. Madhi SA, Mutsaerts EA, Izu A, Boyce W, Bhikha S, Ikulinda BT, Jose L, Koen A, Nana AJ, Moultrie A, Roalfe L, Hunt A, Goldblatt D, Cutland CL, Dorfman JR. Immunogenicity of a single-dose compared with a two-dose primary series followed by a booster dose of ten-valent or 13-valent pneumococcal conjugate vaccine in South African children: an open-label, randomised, non-inferiority trial. Lancet Infect Dis. 2020 12; 20(12):1426-1436. PMID: 32857992; PMCID: PMC7689288.
      Citations: 10     Fields:    Translation:Humans
    41. Dhar N, Kwatra G, Nunes MC, Cutland C, Izu A, Nachbagauer R, Krammer F, Madhi SA. Hemagglutinin Stalk Antibody Responses Following Trivalent Inactivated Influenza Vaccine Immunization of Pregnant Women and Association With Protection From Influenza Virus Illness. Clin Infect Dis. 2020 08 14; 71(4):1072-1079. PMID: 31565750; PMCID: PMC7428398.
      Citations: 7     Fields:    Translation:HumansCells
    42. Firth GB, Ngcakani A, Ramguthy Y, Izu A, Robertson A. The femoral deformity in Blount's disease: a comparative study of infantile, juvenile and adolescent Blount's disease. J Pediatr Orthop B. 2020 Jul; 29(4):317-322. PMID: 32479715.
      Citations: 1     Fields:    Translation:Humans
    43. Madhi SA, Gray GE, Ismail N, Izu A, Mendelson M, Cassim N, Stevens W, Venter F. COVID-19 lockdowns in low- and middle-income countries: Success against COVID-19 at the price of greater costs. S Afr Med J. 2020 06 19; 110(8):724-726. PMID: 32880296.
      Citations: 29     Fields:    Translation:HumansCellsPHPublic Health
    44. Firth GB, Foster M, Pieterse C, Ramguthy Y, Izu A, Bacarese-Hamilton J, Ramachandran M. Effect of seasonal variation on the peak presentation of slipped capital femoral epiphysis. A comparison of children in Johannesburg, South Africa and London, UK. J Pediatr Orthop B. 2020 May; 29(3):268-274. PMID: 31688335.
      Citations:    Fields:    Translation:Humans
    45. Dangor Z, Khan M, Kwatra G, Izu A, Nakwa F, Ramdin T, Fredericks J, Lala SG, Madhi SA. The Association Between Breast Milk Group B Streptococcal Capsular Antibody Levels and Late-onset Disease in Young Infants. Clin Infect Dis. 2020 03 03; 70(6):1110-1114. PMID: 31056692.
      Citations: 8     Fields:    Translation:HumansAnimalsCells
    46. Madhi SA, Izu A, Violari A, Cotton MF, Jean-Philippe P, Otwombe K, Adrian PV, CIPRA 4 team. Effect of HIV-exposure and timing of antiretroviral treatment initiation in children living with HIV on antibody persistence and memory responses to Haemophilus influenzae type b and pneumococcal polysaccharide-protein conjugate vaccines. Vaccine. 2020 03 10; 38(12):2651-2659. PMID: 32070681.
      Citations: 2     Fields:    Translation:HumansCells
    47. Madhi SA, Pathirana J, Baillie V, Cutland C, Adam Y, Izu A, Bassat Q, Blau DM, Breiman RF, Hale M, Johnstone S, Martines RB, Mathunjwa A, Nzenze S, Ordi J, Raghunathan PL, Ritter JM, Solomon F, Wadula J, Zaki SR, Chawana R. An Observational Pilot Study Evaluating the Utility of Minimally Invasive Tissue Sampling to Determine the Cause of Stillbirths in South African Women. Clin Infect Dis. 2019 10 09; 69(Suppl 4):S342-S350. PMID: 31598656; PMCID: PMC6785671.
      Citations: 11     Fields:    Translation:Humans
    48. Chawana R, Baillie V, Izu A, Solomon F, Bassat Q, Blau DM, Breiman RF, Hale M, Houpt ER, Lala SG, Martines RB, Mathunjwa A, Nzenze S, Pathirana J, Petersen KL, Raghunathan PL, Ritter JM, Wadula J, Zaki SR, Madhi SA. Potential of Minimally Invasive Tissue Sampling for Attributing Specific Causes of Childhood Deaths in South Africa: A Pilot, Epidemiological Study. Clin Infect Dis. 2019 10 09; 69(Suppl 4):S361-S373. PMID: 31598659; PMCID: PMC6785686.
      Citations: 22     Fields:    Translation:Humans
    49. Madhi SA, Pathirana J, Baillie V, Izu A, Bassat Q, Blau DM, Breiman RF, Hale M, Mathunjwa A, Martines RB, Nakwa FL, Nzenze S, Ordi J, Raghunathan PL, Ritter JM, Solomon F, Velaphi S, Wadula J, Zaki SR, Chawana R. Unraveling Specific Causes of Neonatal Mortality Using Minimally Invasive Tissue Sampling: An Observational Study. Clin Infect Dis. 2019 10 09; 69(Suppl 4):S351-S360. PMID: 31598660; PMCID: PMC6785687.
      Citations: 26     Fields:    Translation:Humans
    50. Velaphi SC, Izu A, Madhi SA, Pettifor JM. Maternal and neonatal vitamin D status at birth in black South Africans. S Afr Med J. 2019 Sep 30; 109(10):807-813. PMID: 31635580.
      Citations: 7     Fields:    Translation:Humans
    51. Kochhar S, Clarke E, Izu A, Emmanuel Kekane-Mochwari K, Cutland CL. Immunization in pregnancy safety surveillance in low and middle-income countries- field performance and validation of novel case definitions. Vaccine. 2019 05 16; 37(22):2967-2974. PMID: 31014963.
      Citations: 6     Fields:    Translation:HumansPHPublic Health
    52. Madhi SA, Briner C, Maswime S, Mose S, Mlandu P, Chawana R, Wadula J, Adam Y, Izu A, Cutland CL. Causes of stillbirths among women from South Africa: a prospective, observational study. Lancet Glob Health. 2019 04; 7(4):e503-e512. PMID: 30879510.
      Citations: 26     Fields:    Translation:Humans
    53. Ghoor A, Mabaso T, Mopeli K, Izu A, Madhi SA, Lala SG, Verwey C, Dangor Z. Empyema in children hospitalised at Chris Hani Baragwanath Academic Hospital, Johannesburg, South Africa: A retrospective study. S Afr Med J. 2018 Nov 26; 108(12):1055-1058. PMID: 30606292.
      Citations: 3     Fields:    
    54. Simani OE, Izu A, Nunes MC, Violari A, Cotton MF, Van Niekerk N, Adrian PV, Madhi SA. Effect of HIV exposure and timing of antiretroviral therapy initiation on immune memory responses to diphtheria, tetanus, whole cell pertussis and hepatitis B vaccines. Expert Rev Vaccines. 2019 01; 18(1):95-104. PMID: 30417710; PMCID: PMC6842654.
      Citations: 5     Fields:    Translation:Humans
    55. Kwon CS, Al-Awar O, Richards O, Izu A, Lengvenis G. Predicting Prognosis of Patients with Chronic Subdural Hematoma: A New Scoring System. World Neurosurg. 2018 Jan; 109:e707-e714. PMID: 29061462.
      Citations: 10     Fields:    Translation:Humans
    56. Izu A, Solomon F, Nzenze SA, Mudau A, Zell E, O'Brien KL, Whitney CG, Verani J, Groome M, Madhi SA. Pneumococcal conjugate vaccines and hospitalization of children for pneumonia: a time-series analysis, South Africa, 2006-2014. Bull World Health Organ. 2017 Sep 01; 95(9):618-628. PMID: 28867842; PMCID: PMC5578378.
      Citations: 12     Fields:    Translation:Humans
    57. Mammen VG, Dangor Z, Moore DP, Izu A, Beylis N, Madhi SA. Hospitalization for Culture-confirmed Pulmonary Tuberculosis in the Era of Childhood Pneumococcal Conjugate Vaccine Immunization. Pediatr Infect Dis J. 2017 01; 36(1):e14-e21. PMID: 27741092.
      Citations: 3     Fields:    Translation:HumansPHPublic Health
    58. Dangor Z, Cutland CL, Izu A, Kwatra G, Trenor S, Lala SG, Madhi SA. Temporal Changes in Invasive Group B Streptococcus Serotypes: Implications for Vaccine Development. PLoS One. 2016; 11(12):e0169101. PMID: 28036363; PMCID: PMC5201280.
      Citations: 11     Fields:    Translation:HumansCellsPHPublic Health
    59. Chaya S, Dangor Z, Solomon F, Nzenze SA, Izu A, Madhi SA. Incidence of tuberculosis meningitis in a high HIV prevalence setting: time-series analysis from 2006 to 2011. Int J Tuberc Lung Dis. 2016 11; 20(11):1457-1462. PMID: 27776585.
      Citations: 6     Fields:    Translation:HumansCells
    60. Groome MJ, Zell ER, Solomon F, Nzenze S, Parashar UD, Izu A, Madhi SA. Temporal Association of Rotavirus Vaccine Introduction and Reduction in All-Cause Childhood Diarrheal Hospitalizations in South Africa. Clin Infect Dis. 2016 May 01; 62 Suppl 2:S188-95. PMID: 27059355.
      Citations: 23     Fields:    Translation:HumansPHPublic Health
    61. Kwatra G, Adrian PV, Shiri T, Izu A, Cutland CL, Buchmann EJ, Madhi SA. Serotype-Specific Cell-Mediated Immunity Associated With Clearance of Homotypic Group B Streptococcus Rectovaginal Colonization in Pregnant Women. J Infect Dis. 2016 06 15; 213(12):1923-6. PMID: 27029777.
      Citations: 6     Fields:    Translation:HumansCells
    62. Dangor Z, Kwatra G, Izu A, Adrian P, Cutland CL, Velaphi S, Ballot D, Reubenson G, Zell ER, Lala SG, Madhi SA. Correlates of protection of serotype-specific capsular antibody and invasive Group B Streptococcus disease in South African infants. Vaccine. 2015 Nov 27; 33(48):6793-9. PMID: 26478200.
      Citations: 22     Fields:    Translation:HumansCells
    63. Dangor Z, Kwatra G, Izu A, Adrian P, Cutland CL, Velaphi S, Ballot D, Reubenson G, Zell ER, Lala SG, Madhi SA. Association between maternal Group B Streptococcus surface-protein antibody concentrations and invasive disease in their infants. Expert Rev Vaccines. 2015; 14(12):1651-60. PMID: 26364978.
      Citations: 13     Fields:    Translation:HumansCells
    64. Nanoo A, Izu A, Ismail NA, Ihekweazu C, Abubakar I, Mametja D, Madhi SA. Nationwide and regional incidence of microbiologically confirmed pulmonary tuberculosis in South Africa, 2004-12: a time series analysis. Lancet Infect Dis. 2015 Sep; 15(9):1066-1076. PMID: 26112077.
      Citations: 50     Fields:    Translation:Humans
    65. Nunes MC, Cutland CL, Dighero B, Bate J, Jones S, Hugo A, van Niekerk N, Kuwanda L, Izu A, Weinberg A, Madhi SA, Matflu Team. Kinetics of Hemagglutination-Inhibiting Antibodies Following Maternal Influenza Vaccination Among Mothers With and Those Without HIV Infection and Their Infants. J Infect Dis. 2015 Dec 15; 212(12):1976-87. PMID: 26080370; PMCID: PMC4655859.
      Citations: 39     Fields:    Translation:Humans
    66. Madhi SA, Izu A, Nunes MC, Violari A, Cotton MF, Jean-Philippe P, Klugman KP, von Gottberg A, van Niekerk N, Adrian PV, CIPRA 4 team. Longitudinal study on Streptococcus pneumoniae, Haemophilus influenzae and Staphylococcus aureus nasopharyngeal colonization in HIV-infected and -uninfected infants vaccinated with pneumococcal conjugate vaccine. Vaccine. 2015 May 28; 33(23):2662-9. PMID: 25910923; PMCID: PMC4436702.
      Citations: 8     Fields:    Translation:HumansCells
    67. Dangor Z, Kwatra G, Izu A, Adrian P, van Niekerk N, Cutland CL, Adam Y, Velaphi S, Lala SG, Madhi SA. HIV-1 Is Associated With Lower Group B Streptococcus Capsular and Surface-Protein IgG Antibody Levels and Reduced Transplacental Antibody Transfer in Pregnant Women. J Infect Dis. 2015 Aug 01; 212(3):453-62. PMID: 25651843.
      Citations: 27     Fields:    Translation:HumansCells
    68. Dangor Z, Kwatra G, Izu A, Lala SG, Madhi SA. Review on the association of Group B Streptococcus capsular antibody and protection against invasive disease in infants. Expert Rev Vaccines. 2015 Jan; 14(1):135-49. PMID: 25242617.
      Citations: 21     Fields:    Translation:HumansCells
    69. Dangor Z, Izu A, Moore DP, Nunes MC, Solomon F, Beylis N, von Gottberg A, McAnerney JM, Madhi SA. Temporal association in hospitalizations for tuberculosis, invasive pneumococcal disease and influenza virus illness in South African children. PLoS One. 2014; 9(3):e91464. PMID: 24618667; PMCID: PMC3950213.
      Citations: 26     Fields:    Translation:Humans
    70. Simani OE, Izu A, Violari A, Cotton MF, van Niekerk N, Adrian PV, Madhi SA. Effect of HIV-1 exposure and antiretroviral treatment strategies in HIV-infected children on immunogenicity of vaccines during infancy. AIDS. 2014 Feb 20; 28(4):531-41. PMID: 24468996.
      Citations: 34     Fields:    Translation:Humans
    71. Dangor Z, Izu A, Hillier K, Solomon F, Beylis N, Moore DP, Nunes MC, Madhi SA. Impact of the antiretroviral treatment program on the burden of hospitalization for culture-confirmed tuberculosis in South African children: a time-series analysis. Pediatr Infect Dis J. 2013 Sep; 32(9):972-7. PMID: 23503163.
      Citations: 14     Fields:    Translation:HumansCells
    72. Jones SA, Groome M, Koen A, Van Niekerk N, Sewraj P, Kuwanda L, Izu A, Adrian PV, Madhi SA. Immunogenicity of seven-valent pneumococcal conjugate vaccine administered at 6, 14 and 40 weeks of age in South African infants. PLoS One. 2013; 8(8):e72794. PMID: 24015277; PMCID: PMC3755982.
      Citations: 4     Fields:    Translation:HumansCTClinical Trials
    73. Izu A, Cohen T, Degruttola V. Bayesian estimation of mixture models with prespecified elements to compare drug resistance in treatment-naïve and experienced tuberculosis cases. PLoS Comput Biol. 2013; 9(3):e1002973. PMID: 23555210; PMCID: PMC3605089.
      Citations: 5     Fields:    Translation:HumansCells
    74. Madhi SA, Izu A, Violari A, Cotton MF, Panchia R, Dobbels E, Sewraj P, van Niekerk N, Jean-Philippe P, Adrian PV, CIPRA-4 team. Immunogenicity following the first and second doses of 7-valent pneumococcal conjugate vaccine in HIV-infected and -uninfected infants. Vaccine. 2013 Jan 21; 31(5):777-83. PMID: 23228814; PMCID: PMC3646262.
      Citations: 19     Fields:    Translation:Humans
    75. Izu A, Cohen T, Mitnick C, Murray M, De Gruttola V. Bayesian methods for fitting mixture models that characterize branching tree processes: An application to development of resistant TB strains. Stat Med. 2011 Sep 30; 30(22):2708-20. PMID: 21717491; PMCID: PMC3219798.
      Citations: 2     Fields:    Translation:HumansCells
    76. Frey SE, Harrison C, Pass RF, Yang E, Boken D, Sekulovich RE, Percell S, Izu AE, Hirabayashi S, Burke RL, Duliège AM. Effects of antigen dose and immunization regimens on antibody responses to a cytomegalovirus glycoprotein B subunit vaccine. J Infect Dis. 1999 Nov; 180(5):1700-3. PMID: 10515836.
      Citations: 37     Fields:    Translation:HumansCellsCTClinical Trials
    77. Rothstein EP, Anderson EL, Decker MD, Poland GA, Reisinger KS, Blatter MM, Jacobson RM, Mink CA, Gennevois D, Izu AE, Sinangil F, Langenberg AG. An acellular pertussis vaccine in healthy adults: safety and immunogenicity. Pennridge Pediatric Associates. Vaccine. 1999 Aug 06; 17(23-24):2999-3006. PMID: 10462235.
      Citations: 3     Fields:    Translation:HumansAnimalsCellsCTClinical Trials
    78. Corey L, Langenberg AG, Ashley R, Sekulovich RE, Izu AE, Douglas JM, Handsfield HH, Warren T, Marr L, Tyring S, DiCarlo R, Adimora AA, Leone P, Dekker CL, Burke RL, Leong WP, Straus SE. Recombinant glycoprotein vaccine for the prevention of genital HSV-2 infection: two randomized controlled trials. Chiron HSV Vaccine Study Group. JAMA. 1999 Jul 28; 282(4):331-40. PMID: 10432030.
      Citations: 190     Fields:    Translation:HumansCellsPHPublic HealthCTClinical Trials
    79. Heineman TC, Clements-Mann ML, Poland GA, Jacobson RM, Izu AE, Sakamoto D, Eiden J, Van Nest GA, Hsu HH. A randomized, controlled study in adults of the immunogenicity of a novel hepatitis B vaccine containing MF59 adjuvant. Vaccine. 1999 Jul 16; 17(22):2769-78. PMID: 10438046.
      Citations: 20     Fields:    Translation:HumansCTClinical Trials
    80. Boguniewicz M, Schneider LC, Milgrom H, Newell D, Kelly N, Tam P, Izu AE, Jaffe HS, Bucalo LR, Leung DY. Treatment of steroid-dependent asthma with recombinant interferon-gamma. Clin Exp Allergy. 1993 Sep; 23(9):785-90. PMID: 10779310.
      Citations: 8     Fields:    Translation:HumansCellsCTClinical Trials
    81. Hanifin JM, Schneider LC, Leung DY, Ellis CN, Jaffe HS, Izu AE, Bucalo LR, Hirabayashi SE, Tofte SJ, Cantu-Gonzales G, et al. Recombinant interferon gamma therapy for atopic dermatitis. J Am Acad Dermatol. 1993 Feb; 28(2 Pt 1):189-97. PMID: 8432915.
      Citations: 37     Fields:    Translation:HumansCTClinical Trials
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