The coronavirus disease that was first diagnosed in China’s Hubei province has now spread to at least 47 countries and every continent except Antarctica. The World Health Organization has declared the outbreak an international health emergency. President Trump sought to play down the threat from coronavirus and announced Vice President Mike Pence would be his point person to coordinate government efforts to prevent a widespread outbreak. As Trump spoke, a new milestone in the novel coronavirus outbreak was reported, in a possible example of community spread: A person was diagnosed with the virus in Northern California who had not traveled to any of the affected regions of the world, nor had known contact with anyone else who did. We speak with Laurie Garrett, former senior fellow for global health at the Council on Foreign Relations and a Pulitzer Prize-winning science writer. She is the author of several books, including “Ebola: Story of an Outbreak,” “The Coming Plague: Newly Emerging Diseases in a World Out of Balance” and “Betrayal of Trust: The Collapse of Global Public Health.”

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