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» Authors » Nadia van Niekerk

Nadia van Niekerk

Explore the profile of Nadia van Niekerk including associated specialties, affiliations and a list of published articles. Areas
Snapshot
Articles 33
Citations 806
Followers 0
Related Specialties
Infectious Diseases
General Medicine
Allergy & Immunology
Top 10 Co-Authors
Shabir A Madhi
Marta C Nunes
Peter V Adrian
Keith P Klugman
Clare L Cutland
Locadiah Kuwanda
Anthonet Koen
Alane Izu
Stephanie Jones
Anne von Gottberg
Published In
Clin Infect Dis
Vaccine
J Infect Dis
Expert Rev Vaccines
Pediatr Infect Dis J
Affiliations
Soon will be listed here.
Recent Articles
1.
Establishing communication challenges and preferences among clinical trial participants in an under-resourced setting to improve adherence to study visits and participant retention
Mapetla K, Malahleha M, van Niekerk N, Thindisa D, Mpete L, Ahmed K, et al.
Clin Trials . 2021 Dec; 19(1):81-85. PMID: 34875906
Background: Ensuring protocol visit compliance and maintaining high participant retention remain critical elements of clinical trials. In the HVTN 702 HIV vaccine trial, Setshaba Research Centre in Soshanguve, Tshwane, South...
2.
Bacterial nasopharyngeal carriage following infant immunization with pneumococcal conjugate vaccines according to a 2+1 schedule in children in South Africa: an exploratory analysis of two clinical trials
Nunes M, Moreira M, Koen A, van Niekerk N, Jose L, Cutland C, et al.
Expert Rev Vaccines . 2020 Nov; 19(12):1177-1189. PMID: 33245004
: We evaluated bacterial nasopharyngeal carriage (NPC) prevalence and cumulative acquisition following 7-valent pneumococcal conjugate vaccine (PCV7) or pneumococcal non-typeable protein D conjugate vaccine (PHiD-CV) administration. : Participants were children...
3.
Residual colonization by vaccine serotypes in rural South Africa four years following initiation of pneumococcal conjugate vaccine immunization
Madhi S, Nzenze S, Nunes M, Chinyanganya L, van Niekerk N, Kahn K, et al.
Expert Rev Vaccines . 2020 Apr; 19(4):383-393. PMID: 32237932
Background: We evaluated pneumococcal colonization in children and adults between the time of 7-valent pneumococcal conjugate vaccine (PCV) introduction in the immunization program in 2009 to two years after transitioning...
4.
Streptococcus pneumoniae colonization in pneumococcal vaccine-naïve human immunodeficiency virus-exposed infected and -uninfected South African children
Coelho Nunes M, Kim S, Zeldow B, Violari A, Dittmer S, Cassim H, et al.
Medicine (Baltimore) . 2020 Mar; 99(9):e19353. PMID: 32118776
Pneumococcal nasopharyngeal colonization is a pre-requisite for pneumococcal disease; the risk for pneumococcal disease is high in children born to women living with human immunodeficiency virus (HIV). We investigated pneumococcal...
5.
Impact of HIV status and vaccination schedule on bacterial nasopharyngeal carriage following infant immunisation with the pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine in South Africa
Madhi S, Moreira M, Koen A, van Niekerk N, de Gouveia L, Jose L, et al.
Vaccine . 2020 Feb; 38(10):2350-2360. PMID: 32035706
Background: Nasopharyngeal carriage (NPC) of Streptococcus pneumoniae is a precondition for pneumococcal disease and a source of transmission. This trial evaluated NPC of S. pneumoniae and other pathogens post-vaccination with...
6.
Effect of HIV exposure and timing of antiretroviral therapy initiation on immune memory responses to diphtheria, tetanus, whole cell pertussis and hepatitis B vaccines
Simani O, Izu A, Nunes M, Violari A, Cotton M, van Niekerk N, et al.
Expert Rev Vaccines . 2018 Nov; 18(1):95-104. PMID: 30417710
Objectives: We evaluated memory responses and antibody persistence to diphtheria-toxoid, tetanus-toxoid, whole-cell-pertussis (DTwP), and Hepatitis-B vaccines in HIV-unexposed, HIV-exposed-uninfected and HIV-infected children previously randomized to initiate time-limited ART at 6-10 ...
7.
Burden of Respiratory Syncytial Virus Infection in South African Human Immunodeficiency Virus (HIV)-Infected and HIV-Uninfected Pregnant and Postpartum Women: A Longitudinal Cohort Study
Madhi S, Cutland C, Downs S, Jones S, van Niekerk N, Simoes E, et al.
Clin Infect Dis . 2017 Dec; 66(11):1658-1665. PMID: 29253090
Background: Limited data exist on the burden of respiratory syncytial virus (RSV) illness among pregnant women, to determine their potential benefit from RSV vaccination. We evaluated the incidence of RSV...
8.
Immunization with 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV) according to different schedules in infants in South Africa: a phase III trial
Madhi S, Koen A, Jose L, Moreira M, van Niekerk N, Cutland C, et al.
Expert Rev Vaccines . 2017 Apr; 16(6):641-656. PMID: 28425818
Background: Limited clinical data exists to assess differences between various infant pneumococcal conjugate vaccine schedules. In this trial, we evaluated immunogenicity of the 10-valent pneumococcal non-typeable Haemophilus influenzae protein D...
9.
Contribution of Serologic Assays in the Evaluation of Influenza Virus Infection Rates and Vaccine Efficacy in Pregnant Women: Report From Randomized Controlled Trials
Madhi S, Nunes M, Weinberg A, Kuwanda L, Hugo A, Jones S, et al.
Clin Infect Dis . 2017 Apr; 64(12):1773-1779. PMID: 28369198
Background.: The utility of serologic testing to evaluate vaccine efficacy of seasonal inactivated influenza vaccine (IIV) is controversial. We aimed to evaluate the efficacy of IIV against serologically diagnosed influenza...
10.
Vaccination with 10-valent pneumococcal conjugate vaccine in infants according to HIV status
Madhi S, Koen A, Jose L, van Niekerk N, Adrian P, Cutland C, et al.
Medicine (Baltimore) . 2017 Jan; 96(2):e5881. PMID: 28079828
Background: Phase III, open-label, single-center, controlled study in South Africa (ClinicalTrials.gov: NCT00829010) to evaluate immunogenicity, reactogenicity, and safety of the 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV)...