How important is airflow to preventing the spread of Covid-19? As schools and other public buildings begin to reopen, Dr. Sanjay Gupta revisits a conversation with Joseph Allen, Director of the Healthy Buildings program at the Harvard T.H. Chan School of Public Health, about the science behind airborne transmission.

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There’s tons of evidence that loneliness can have negative impacts on our mental and even physical health. But when it comes to interventions that reduce loneliness, there is far less research. Today on the podcast, we check out what one neighborhood in Brooklyn is doing to bring people safely together during the pandemic, and we check in with an expert on loneliness, Professor Julianne Holt-Lunstad, about new promising research that demonstrates the power of performing small acts of kindness. 

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Many states are making people with a certain Body Mass Index eligible for vaccines. But because weight carries such a stigma, showing up to an appointment may not be as easy as it sounds. CNN Chief Medical Correspondent Dr. Sanjay Gupta hears from a coworker about her personal experience getting vaccinated, and navigating the complex relationship between weight and health.

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For those struggling with an opioid addiction, COVID-19 has created a perfect storm of stress and isolation. CNN Chief Medical Correspondent Dr. Sanjay Gupta talks to Dr. Andrew Kolodny, the medical director of opioid policy research at the Heller School for Social Policy and Management at Brandeis University. They discuss the pandemic’s effect on the opioid crisis in the U.S. and the efforts underway to end the decades-long epidemic. 

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Last December, the Pfizer-BioNTech Covid-19 vaccine became the first covid-19 vaccine to be authorized for use in the world following large-scale clinical trials. Today, CNN’s Chief Medical Correspondent Dr. Sanjay Gupta sits down with Dr. Ugur Sahin and Dr. Ozlem Tureci, the husband-and-wife scientists who designed the vaccine.

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Last month, the C.D.C. released new guidelines to help schools stay safe as they reopened, and now educators across the country are beginning the tricky work of putting that guidance into action. CNN Chief Medical Correspondent Dr. Sanjay Gupta talks to Atlanta Public Schools Superintendent Lisa Herring about how she’s been reopening schools and balancing safety precautions with students’ educational needs. 

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With over 2.5 million global coronavirus deaths, millions more have faced the daunting task of saying goodbye to a loved one from a distance. CNN Chief Medical Correspondent Dr. Sanjay Gupta looks at the ways funeral homes and mourning families are navigating the process.

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One year ago this week, CNN called the spread of the coronavirus a pandemic. Two days later, the World Health Organization followed. At this official one-year mark of the pandemic, Dr. Sanjay Gupta checks in with Maria Van Kerkhove, a leader in the World Health Organization’s Covid-19 response. They talk about what they’ve learned and what still lies ahead. 

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This pandemic has highlighted how essential it is for people to feel like they can trust public health officials. But that’s easier said than done in Flint, Michigan, where locals are still dealing with serious repercussions from the 2014 water crisis. CNN’s Omar Jimenez reports from Flint, talking to members of the community about their lasting distrust in government and how that's impacted their views on the coronavirus vaccines.

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The CDC just released new guidelines for fully vaccinated people. CNN Chief Medical Correspondent Dr. Sanjay Gupta explains the latest recommendations for what you can do safely with friends and family once you've received your shots.

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