3 April 2020 (UN Environment)* — In recent decades, zoonotic diseases–those transferred from animals to humans–have gained international attention. Ebola, avian influenza (or bird flu), H1N1 flu virus (or swine flu), Middle East respiratory syndrome (MERS), Rift Valley fever, sudden acute respiratory syndrome (SARS), West Nile virus, the Zika virus–and now, the novel coronavirus COVID-19–have all either caused or threatened to cause major pandemics, with thousands of deaths and billions in economic losses.
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