Experts offer advice on how parents can help adolescents get the facts straight and be prepared.

A student received a lesson online in Bareggio, near Milan, Italy, where schools are closed because of the coronavirus.Credit…Yara Nardi/Reuters

What should parents do if their teens and tweens, with easy access to information on their phones and laptops, develop anxiety over what they have heard about the coronavirus?

Here are tips from experts on how to help adolescents.

The psychologist Lisa Damour, author of “Under Pressure: Confronting the Epidemic of Stress and Anxiety in Girls,” said parents can help lessen their anxiety, and that of their kids, by learning all they can about the novel coronavirus and how to protect themselves.

“Reinforce basic stuff kids know and understand: Wash your hands, get a good night’s sleep, protect your immune system,” Dr. Damour said. “Tell your kids you know what to do to reduce the chances of getting sick.”

Other common-sense tips include trying to avoid touching your eyes, nose or mouth, all routes of viral transmission, and keeping your distance from people who are coughing.

It may be reassuring to some young people to learn that children seem to be less likely to get sick from the virus.

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Daniela Raccanello, an assistant professor of developmental and educational psychology at the University of Verona, Italy, found herself using some of her professional advice with her own 7- and 10-year-old daughters when their school in the Padua region closed last week because of coronavirus.

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“It is key to help children continue their lives as normally as possible, but at the same time be aware of what is happening,” Dr. Raccanello said. “Keep them busy with their studies, and reassure them that the current situation, like their school being closed, is the best way to keep people safe.”

She is part of a group called Hemot, an international organization focusing on emotional preparedness for disasters, which published this pamphlet to help parents talk about coronavirus with their children. She said she used what she had learned from working on it to help ease her daughters’ fears that they or someone they know might get sick from the virus.

Wendy Mogel, a clinical psychologist and the author of “Voice Lessons for Parents,” noted that the coronavirus has all the makings of a horror movie that will fascinate many older kids.

“The virus’s origin, the quick spread around the world, the allure of this novel disease is everywhere,” she said. “Turn off the news and really find out what your kids know about the virus.”

“Answer their questions, and if you don’t know the answer, be honest. You can research the answers together,” Dr. Mogel said.

[What scientists know about the virus]

Richard Bromfield, a psychologist at Harvard Medical School and the author of “How to Unspoil Your Child Fast,” agreed. “Kids are exposed to so much information today that they marinate in it,” he said. “Manage what your kids see and hear, but have them share with you what they are exposed to so you can discuss it. Try to see it the way they see it, and help correct misinformation and put it in context.”

Dr. Bromfield cautions that parents should not falsely reassure kids by saying things like “you’ll be fine” or “everyone’s going to be fine.” Instead, parents should try to understand what their children are feeling.

“Parents should have one leg in the worry and one leg in the place of constructive help, comfort and validation of how hard it is to be experiencing this,” Dr. Bromfield said.

He compared it to other recent catastrophes that have been in the news, such as the bush fires in Australia.

“For parents it is easy to imagine a 3- or 4-year-old crying when they see a koala bear burned and alone,” he said. “I think we forget that a 17-year-old still has a little bit of that younger child in them, and they too are frightened and vulnerable.”

Dr. Mogel suggested passing along the words one teenager recently used in talking about the virus to her: “She said people with stronger immune systems should take more responsibility to keep people with weaker immune systems well.”

She added, “It’s also a good opportunity for parents to reinforce what they have always told their kids: Get a good night’s sleep, get some sunshine, eat well and make sure you wash your hands.”

Give teens the right information about how viruses are transmitted and put it in context, suggested Heather Turgeon, a psychotherapist and co-author of “Now Say This: The Right Words to Solve Every Parenting Dilemma.”

“Explain that part of why we take certain precautions, like 20-second hand-washing before snacks and lunch, not sharing food and utensils, and so forth is that we’re protecting vulnerable people. It’s a community effort,” Ms. Turgeon said.

If your own emergency preparation plans include stocking up on groceries and toiletries, as you would before a big snowstorm or hurricane, you might invite your kids to go the store with you. Having a stash of their favorite snacks in the pantry could help them feel prepared.

[Advice from NYT Parenting on talking about the virus with preschoolers]

With spring break on the horizon for many schoolchildren, Dr. Damour said that if families do decide to cancel trips, it’s good to be completely upfront about it.

“Tell your kids that this year, the risk of traveling isn’t worth it, but you will find another way for your family to have fun,” Dr. Damour said.

[Should you cancel spring break plans? Advice from NYT Parenting]

“Rather than just react, parents should reflect, think and plan to talk to their child with thoughtfulness, carefulness and steadfastness,” Dr. Bromfield said. “That helps your child and you navigate this particular moment and serve as a template, as a way to approach the next one. The implication is that your child will be able to do that in the future on his or her own.”

    • What is a coronavirus?
      It is a novel virus named for the crownlike spikes that protrude from its surface. The coronavirus can infect both animals and people and can cause a range of respiratory illnesses from the common cold to lung lesions and pneumonia.
    • How contagious is the virus?
      It seems to spread very easily from person to person, especially in homes, hospitals and other confined spaces. The pathogen can travel through the air, enveloped in tiny respiratory droplets that are produced when a sick person breathes, talks, coughs or sneezes.
    • Where has the virus spread?
      The virus, which originated in Wuhan, China, has sickened more than 89,700 in at least 67 countries and more than 3,000 have died. The spread has slowed in China, but is picking up speed in Europe and the United States.
    • What symptoms should I look out for?
      Symptoms, which can take between two to 14 days to appear, include fever, cough and difficulty breathing or shortness of breath. Milder cases may resemble the flu or a bad cold, but people may be able to pass on the virus even before they develop symptoms.
    • What if I’m traveling?
      The C.D.C. has advised against all non-essential travel to South Korea, China, Italy and Iran. And the agency has warned older and at-risk travelers to avoid Japan.
    • How long will it take to develop a treatment or vaccine?
      Several drugs are being tested, and some initial findings are expected soon. A vaccine to stop the spread is still at least a year away.