The Accad and Koka Report

Gabriela Gomes: Why Herd Immunity May Be at Hand

The Accad & Koka Report
Michel Accad, MD Anish Koka

Our guest is Gabriela Gomes, Professor of Mathematics at the University of Strathclyde. She specializes in population dynamics and the modeling of herd immunity and her recent work suggests covid-19 herd immunity may be at hand. We discuss how herd immunity thresholds are estimated and why she thinks classic models are flawed and must incorporate a measure of variation in individual susceptibility.


  • Gabriela Gomes, PhD: Twitter and website

  • Gomes et al. (May 2020 paper), ”Individual Variation in Susceptibility or Exposure to SARS-CoV-2 Lowers the Herd Immunity Threshold” in MedRxiv

  • Aguas et al. (July 2020 paper), ”Herd Immunity Thresholds for SARS-CoV-2 Estimated from Unfolding Epidemics” in Medrxiv

  • Britton et al., ”A Mathematical Model Reveals the Influence of Population Heterogeneity on Herd Immunity to SARS-CoV-2” in Science (open access)

  • Kevin Hartnett, ”The Tricky Math of COVID-19 Herd Immunity” in Quanta Magazine

  • Fine et al., “’Herd Immunity’: A Rough Guide” in Clinical Infectious Disease (open access)

  • Watch the episode on YouTube