Pediatricians San Diego

Anne Rimoin, a professor of epidemiology at the University of California, Los Angeles, takes listener questions about the properties of the virus four months after the first coronavirus case.

Anne Rimoin, a professor of epidemiology at the University of California, Los Angeles, takes listener questions about the properties of the virus four months after the first coronavirus case.

John Barry, the author of The Great Influenza: The Story of the Deadliest Pandemic in History , talks about the lessons we can learn from the 1918 Spanish Flu and answers listener questions.

Public officials across the U.S. are considering using contact tracing to ensure a safe reopening of the states. NPR's health policy correspondent answers listener questions on contact tracing.

The president invoked the Defense Production Act after more than a dozen beef, pork and poultry plants across the country shut down either temporarily or indefinitely in the past few weeks. (Image credit: David Zalubowski/AP)

The announcement by Mayor Eric Garcetti makes L.A. the first major city to offer free testing to all its residents. It came as county health officials reported another 1,541 confirmed COVID-19 cases. (Image credit: Marcio Jose Sanchez/AP)

The number of lives taken by COVID-19 in the U.S. has reached a grim milestone: More people have died of the disease than the 58,220 Americans who perished in the Vietnam War. (Image credit: John Nacion/NurPhoto via Getty Images)

Vice President Pence on Tuesday said he was following CDC guidelines in not wearing a face mask during public appearances since he is frequently tested for the coronavirus. (Image credit: Pool/Getty Images)

Dr. Helen Boucher, chief of the infectious diseases department at Tufts University Medical Center, talks about newly identified COVID-19 symptoms and takes listener questions.

Dr. Helen Boucher, chief of the infectious diseases department at Tufts University Medical Center, talks about the Centers for Disease Control and Prevention's list of new symptoms for COVID-19.

The COVID-19 pandemic is taking a mental health toll. An NPR science correspondent answers listener questions about the effects of the epidemic on mental health and ways to mitigate them.

Employees who refuse to return to work out of concern for their safety will lose state and federal benefits. It's a predicament millions will soon face as lawmakers set to restart their economies. (Image credit: David Goldman/AP)

Dentist Dr. Suhail Mohiuddin advises listeners on when a visit to a dentist is absolutely necessary, and when it is better to stay home during the coronavirus pandemic.

NPR's Ari Shapiro speaks with epidemiologist Dr. Celine Gounder about practices states should follow to ensure safe reopening.

President Nayib Bukele authorized officers to use lethal force against gang members who allegedly were responsible for dozens of murders while police were focused on the COVID-19 lockdown. (Image credit: Marvin Recinos/AFP via Getty Images)

Japan currently conducts about 9,000 tests per day and the move for dentists to administer them is aimed at relieving the burden on doctors and boosting capacity. (Image credit: Etsuo Hara/Getty Images)

David Calhoun says airlines are "grounding fleets, deferring airplane orders, postponing acceptance of completed orders, and slowing down or stopping payments." (Image credit: Saul Loeb/AFP via Getty Images)

Any gradual loosening of the statewide stay-at-home orders will depend on people's adherence to social distancing guidelines, the governor stressed in a news conference Monday. (Image credit: Marcio Jose Sanchez/AP)

Illinois Democrat Raja Krishnamoorthi, who chairs the House Oversight subcommittee on Economic and Consumer Policy, says the FDA is unable to validate the accuracy of serology tests

Dr. Caroline Schulman, a third-year resident at George Washington University Hospital, calls patients every day to give them their test results. She describes the experience.

Most coronavirus antibody test-makers are choosing to skip FDA verification, says Raja Krishnamoorthi of the House Subcommittee on Economic and Consumer Policy (Image credit: Seth Wenig/AP)

After mounting pressure from parents, the Spanish government announced last week that starting Sunday, children could leave the house for one hour each day. (Image credit: Lucia Benavides/NPR)

People separated from hospitalized loved ones are now feeling especially helpless, as they're unable to be at their bedsides. Many are desperately trying to find ways to advocate for their care.

In a nationwide television address, Giuseppe Conte said that a phased lifting of restrictions would begin May 4, and if all goes well, most would end by June 1. (Image credit: Ernesto Ruscio/Getty Images)

Suzanne Koven, a medical doctor and Massachusetts General Hospital's first writer in residence, says the healthcare center is the setting for thousands of real-life stories.

Ultraviolet light and pantyhose: We catch up on the latest information about protecting yourself from the coronavirus.

The World Health Organization warned against "immunity passports," which allow travel only to recovered patients, saying studies must first confirm whether people are indeed safe from reinfection. (Image credit: Greg Baker/AFP via Getty Images)

NPR's Michel Martin speaks with John Welch, the director of partnerships & operations for Massachusetts' COVID-19 response at Partners In Health, about their contact tracing program and training.

Health care facilities are asking states to exempt them from legal liability as the coronavirus continues to take a heavy toll. Some advocates say this gives poorly run businesses cover.

A higher than usual number of callers reported exposure to disinfectants and cleaners following the president's Thursday briefing. Nationwide, there's been a 20% rise in such cases this year. (Image credit: Alex Brandon/AP)

President Trump has signed the latest economic relief package, this one aimed at small businesses and hospitals. (Image credit: Pool/Getty Images)

Dr. Ashish Jha, director of the Harvard Global Health Institute, debunks popular misconceptions about COVID-19.

Dr. Ashish Jha, director of the Harvard Global Health Institute, debunks popular misconceptions about COVID-19.

Researchers worldwide are trying to develop a vaccine to stop the spread of the coronavirus. An NPR science correspondent takes various listener questions about a potential coronavirus vaccine.

Director of the Harvard Global Health Institute Dr. Ashish Jha and an NPR science correspondent answer listener questions on the spread of the coronavirus and drugs believed to treat it.