Maria Van Kerkhove, a top World Health Organization official on COVID-19, speaks at a news conference in July. Fabrice Coffrini/POOL/AFP via Getty Images hide caption toggle caption Fabrice Coffrini/POOL/AFP via Getty Images Maria Van Kerkhove, a top World Health Organization official on COVID-19, speaks at a news conference in July. Fabrice Coffrini/POOL/AFP via Getty Images…