Helena W. Vreede
Cape Town, WC, South Africa
Last Updated: 09/26/2026
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Found 9 publications
Correction: SARS-CoV-2 seroepidemiology in Cape Town, South Africa, and implications for future outbreaks in low-income communities.
Journal: PLOS global public health
Published: June 12, 2025
Mitigating the risk of tube shortages: A blood collection tube validation study conducted in South Africa.
Journal: African journal of laboratory medicine
Published: September 23, 2024
SARS-CoV-2 seroepidemiology in Cape Town, South Africa, and implications for future outbreaks in low-income communities.
Journal: PLOS global public health
Published: August 25, 2023
How South Africa Used National Cycle Threshold (Ct) Values to Continuously Monitor SARS-CoV-2 Laboratory Test Quality.
Journal: Diagnostics (Basel, Switzerland)
Published: May 30, 2023
Multicentre verification of haematology laboratory blood collection tubes during a global blood collection tube shortage.
Journal: International journal of laboratory hematology
Published: April 12, 2023
Epidemiology and outcomes of SARS-CoV-2 infection associated with anti-nucleocapsid seropositivity in Cape Town, South Africa.
Journal: medRxiv : the preprint server for health sciences
Published: December 16, 2022
Evaluating systematic targeted universal testing for tuberculosis in primary care clinics of South Africa: A cluster-randomized trial (The TUTT Trial).
Journal: PLoS medicine
Published: October 02, 2022
HIV false positive screening serology due to sample contamination reduced by a dedicated sample and platform in a high prevalence environment.
Journal: PloS one
Published: February 11, 2020
Incidence of acetylcholine receptor-antibody-positive myasthenia gravis in South Africa.
Journal: Muscle & nerve
Published: July 21, 2014
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Last Updated: 09/26/2026