Allison Aubrey

Anxiety thrives on uncertainty.

And, as the coronavirus spreads, our unanswered questions can make us feel vulnerable or fearful. "Will it come to my community" or "Am I at risk?'

"We've got national anxiety at the moment, a kind of shared stress, and we are all in a state of extreme uncertainty," says Catherine Belling, an associate professor at Northwestern University, Feinberg School of Medicine, who studies the role of fear and anxiety in health care.

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Many Americans are probably doing a lot more of this these days.

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This evening, President Trump held a news conference to talk about the coronavirus and the illness it causes - COVID-19.

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As the case count of coronavirus infections continues to rise in China, the number of reported infections among children is remarkably low.

"We're seeing [about] 75,000 total cases at this point, but the literature is only reporting about 100 or so pediatric cases," says Terri Lynn Stillwell, a pediatric infectious disease expert at Mott Children's Hospital at the University of Michigan.

Efforts to stem the tide of teen vaping seem to be a step behind the market. By the time Juul pulled most of its flavored pods from the market in October of 2019, many teens had already moved on to an array of newer, disposable vape products.

There's a seasonality to many viruses. Flu and cold viruses tend to peak in winter months, then die down with warmer weather.

Will the newly identified coronavirus and the disease it causes — COVID-19 — follow a similar pattern?

Before that question can be answer, let's consider how seasons and temperature influence the spread of viruses.

The common cold is a top reason for missed work and school days. Most of us have two or three colds per year, each lasting at least a week.

There's no real cure, but studies from the last several years show that some supplement containing zinc can help shorten the duration of cold symptoms by up to 40% — depending on the amount of the mineral in each dose and what it's combined with.

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Two-thirds of Americans say the novel coronavirus poses a "real threat" and has not been "blown out of proportion."

And, though the majority of Americans are concerned about the potential spread of the virus within the U.S., 61% also say U.S. government officials are doing enough to prevent it.

In an era of online shopping and global shipping, some NPR listeners have written to us with this question: Am I at risk of catching the new coronavirus from a package I receive from China?

Almost certainly no, according to the Centers for Disease Control and Prevention.

"Because of poor survivability of these coronaviruses on surfaces, there is likely very low risk of spread from products or packaging that are shipped over a period of days or weeks at ambient temperatures," the CDC concludes in its Q&A.

Updated 7:55 p.m. ET

The Trump administration declared a public health emergency in the U.S. Friday in response to the global coronavirus outbreak.

"Today President Trump took decisive action to minimize the risk of novel coronavirus in the United States," said U.S. Health and Human Services Secretary Alex Azar at a White House press conference.

The risk of contracting the coronavirus is the U.S. is low — something that federal health administration officials emphasized repeatedly. "We are working to keep the risk low," Azar said.

If you live in the U.S., your risk of contracting the new strain of coronavirus identified in China is exceedingly low.

More than a dozen cities in the Chinese province of Hubei are under official lockdown. And some cities and villages are taking it upon themselves to seal off their communities — even if their actions aren't legal.

It's all to prevent the spread of a new strain of coronavirus that has killed over 130 people and sickened more than 5,900 in China.

What do these measures consist of? And do scientists think they will help contain this rapidly spreading virus?

The strictest quarantine is in Wuhan, a city of 11 million that's the epicenter of the outbreak.

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Memphis Meats, a Berkeley, Calif.-based startup, says it's one step closer to bringing cell-based meat to consumers' mouths.

The company plans to build a pilot production facility with funds raised from high-profile investors including Bill Gates, Richard Branson and Kimbal Musk, as well as two giant players in the animal protein and feed space, Cargill and Tyson Foods. The company says its latest funding round has brought in $161 million in new investment.

If you've ever considered training for a marathon, but you're a bit intimidated by the idea of 26.2 miles, here's some motivation.

A slow and steady six-month training program designed to gradually build up endurance and mileage gave a group of novice runners, ages 21 to 69, an impressive boost to their heart health.

"What we found in this study is that we're able to reverse the processes of aging that occur in the [blood] vessels," says study author Dr. Anish Bhuva, a British Heart Foundation Cardiology Fellow at Barts Heart Centre in the United Kingdom.

More Americans are ordering more rounds, and that's leading to more funerals, according to a new study on alcohol-related deaths.

Looking at data from the National Center for Health Statistics, researchers estimate deaths from alcohol-related problems have more than doubled over the past nearly 20 years.

Death certificates spanning 2017 indicate nearly 73,000 people died in the U.S because of liver disease and other alcohol-related illnesses. That is up from just under 36,000 deaths in 1999.

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Hunger once seemed like a simple problem. Around the globe, often in low-income countries, many people didn't get enough calories.

But increasingly, hunger exists side-by-side with obesity. Within the same community, some people are overweight while others don't have enough to eat.

And the tricky part: You can't "fix" hunger by just feeding people empty calories. You've got to nourish people with healthy, nutrient-dense foods, so they don't become obese.

The extreme cases of lung injury caused by vaping have raised awareness of the potential harms of electronic cigarettes.

Since the Centers for Disease Control and Prevention began tracking the problem last March, there have been 52 confirmed deaths and about 2,400 hospitalizations.

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There's a lot of enthusiasm for intermittent fasting — a term that can encompass everything from skipping a meal each day to fasting a few days a week.

This story was produced as part of a collaboration with the PBS NewsHour

As the season of big holiday meals kicks off, it's as good a time as any to reflect on just how much food goes to waste.

If you piled up all the food that's not eaten over the course of a year in the U.S., it would be enough to fill a skyscraper in Chicago about 44 times, according to an estimate from the U.S. Department of Agriculture.

It's long been known that eating fish — especially cold-water fish such as salmon that are rich in omega-3 fatty acids — is good for heart health.

But, for the millions of Americans who are at high risk of heart disease, eating enough fish to make a difference isn't likely to be realistic for most.

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There's new evidence that mind-body interventions can help reduce pain in people who have been taking prescription opioids — and lead to reductions in the drug's dose.

In a study published this month in JAMA Internal Medicine, researchers reviewed evidence from 60 studies that included about 6,400 participants. They evaluated a range of strategies, including meditation, guided imagery, hypnosis and cognitive behavioral therapy.

Officials at the Centers for Disease Control and Prevention say there has been a breakthrough in the investigation into the outbreak of vaping-related lung injuries that has led to the deaths of 39 people and sickened more than 2,000 others.

Investigators announced Friday that they have detected a chemical compound called vitamin E acetate in all the samples of lung fluid collected from 29 patients who were hospitalized after vaping, suggesting a possible culprit for the spate of lung injuries that has swept across the U.S.

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