EPIDEMICSA One Health Approach to Preparedness and Prevention

Published 20 October 2022

COVID-19 is the latest zoonotic RNA virus epidemic of concern. Learning how it began and spread will help to determine how to reduce the risk of future events.

In a recent Proceedings of the National Academy of Sciences article, Keusch et al. discuss the importance of One Health in improving and integrating biosafety and biosecurity. Their abstract explains:

COVID-19 is the latest zoonotic RNA virus epidemic of concern. Learning how it began and spread will help to determine how to reduce the risk of future events. We review major RNA virus outbreaks since 1967 to identify common features and opportunities to prevent emergence, including ancestral viral origins in birds, bats, and other mammals; animal reservoirs and intermediate hosts; and pathways for zoonotic spillover and community spread, leading to local, regional, or international outbreaks. The increasing scientific evidence concerning the origins of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) is most consistent with a zoonotic origin and a spillover pathway from wildlife to people via wildlife farming and the wildlife trade. We apply what we know about these outbreaks to identify relevant, feasible, and implementable interventions. We identify three primary targets for pandemic prevention and preparedness: first, smart surveillance coupled with epidemiological risk assessment across wildlife–livestock–human (One Health) spillover interfaces; second, research to enhance pandemic preparedness and expedite development of vaccines and therapeutics; and third, strategies to reduce underlying drivers of spillover risk and spread and reduce the influence of misinformation. For all three, continued efforts to improve and integrate biosafety and biosecurity with the implementation of a One Health approach are essential. We discuss new models to address the challenges of creating an inclusive and effective governance structure, with the necessary stable funding for cross-disciplinary collaborative research. Finally, we offer recommendations for feasible actions to close the knowledge gaps across the One Health continuum and improve preparedness and response in the future.

Science published a news article discussing this paper, writing

“Our paper recognizes that there are different possible origins, but the evidence towards zoonosis is overwhelming,” says co-author Danielle Anderson, a virologist at the University of Melbourne. The report, which includes an analysis that found the peer-reviewed literature overwhelmingly supports the zoonotic hypotheses, appeared in the Proceedings of the National Academy of Sciences (PNAS) on 10 October.”

The article continued: “The panel’s own history reflects the intensity of the debate. Originally convened as a task force of the Lancet COVID-19 Commission, a wide-reaching effort to derive lessons from the pandemic, it was disbanded by Columbia University economist Jeffrey Sachs, the commission’s chair. Sachs alleged that several members had conflicts of interest that would bias them against the lab-origin hypothesis.”