What outcomes can be attributed to Glenda Gray?

Glenda Gray

South African HIV and vaccine researcher who was President and CEO of the South African Medical Research Council for two terms ending in 2024 and chairs the GARDP board.

Self-reportedOutcomes at a glance

4 documented outcomes: 4 self-reported.

Sisonke health-worker vaccination (early phase)

Self-reported

157,286 health care workers had received a single dose by 17 March 2021 (more than 10% of frontline health workers)

Role: Principal Investigator
Reported by: SAMRC

Sources ¹

Sisonke health-worker vaccination (completed)

Self-reported

Over 470,000 health workers reached at more than 120 sites

Role: Co-lead investigator
Reported by: Study team, reported by SAnews (government news agency)

Sources ²

Sisonke vaccine effectiveness

Self-reported

About 65-66% protection against hospitalisation and 91-96.2% protection against death (source gives 91-95% in one passage and 91-96.2% for latest data)

Role: Co-lead investigator
Reported by: Study team, reported by SAnews

Sources ²

SAMRC governance

Self-reported

Five consecutive clean audits during her tenure

Role: President and CEO
Reported by: SAMRC press release

Sources ³

Reports and evaluations

PrimaryMore than 10 percent of the health care workers successfully vaccinated through the Sisonke StudySouth African Medical Research Council · 18 Mar 2021
PrimaryStudy affirms J&J vaccine efficacy against death, hospitalisationSAnews (South African Government News Agency) · 6 Aug 2021
PrimaryPresident and CEO of the SAMRC Prof Glenda Gray's second term comes to an end in 2024South African Medical Research Council · 31 Jul 2023

Revisions

27 Oct 2026 Published after review.

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