The Public Health Agency of Sweden
Updated 22 December 2021

FAQ about COVID-19

Please note: These FAQ:s may not be completely updated due to the rapid change in the pandemic situation, the increasing knowledge about COVID-19 and hence the continuous review of preventive measures recommended in Sweden.

Vaccination certificate


The virus and the illness

  • Listen

    In most people, COVID-19 manifests as a respiratory tract infection, and many different symptoms may be present. It is not possible to distinguish COVID-19 from other infections from only the symptoms – a laboratory test is required.

    Among the reported symptoms are:

    • Cough
    • Fever
    • Difficulty breathing
    • Runny nose
    • Blocked nose
    • Sore throat
    • Headache
    • Nausea
    • Muscle and joint pain
    • Loss of smell and taste
    • Diarrhoea

    Most people get mild symptoms and can recover at home without professional medical care. The symptoms often appear gradually. Some people get a severe form of the illness, with breathing difficulties and pneumonia.

    It is very important that you stay at home if you feel ill. If you can no longer manage the illness on your own, please call 1177 for medical advice (available in English).

    Updated: 9/17/2021 3:19:21 PM

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  • Listen

    COVID-19 is mainly transmitted between people via respiratory droplets or secretions from the respiratory tract. Transmission via droplets happens when an infected person coughs, sneezes, speaks or breathes out and the droplets reach mucous tissue in someone's eyes, nose, or mouth.

    There might be places and situations where the risk of transmission is higher, even if we keep a distance from each other, e.g. in cramped areas with bad ventilation.

    The virus can be transmitted via contaminated surfaces, so-called indirect contact transmission, but the risk of getting infected via contaminated surfaces is considered to be low.

    Updated: 9/17/2021 3:19:52 PM

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  • Listen

    The incubation period, i.e. the time between getting infected and developing symptoms, seems to be between 2 and 14 days.

    Most people develop symptoms after around 5 days, but individual cases may deviate from this pattern.

    Updated: 1/4/2022 8:15:25 AM

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  • Listen

    If you have had COVID-19, you have some protection against reinfection. This means that you are less likely to become infected and seriously ill, and less likely to infect others if you are exposed to the virus again. Over time, the protection that you get after an infection wanes and there is an increased risk of getting infected again. At present, we estimate that the protection after having had COVID-19 lasts at least six months from the time of infection.

    Updated: 9/17/2021 3:20:36 PM

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Spread of infection

COVID-19 and children

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    A child with new symptoms of a respiratory infection such as a runny nose, sore throat, fever, cough or feeling generally unwell, needs to stay home until their condition has improved. If the child has had a fever, they must have been fever-free for at least 24 hours before returning to preschool. The child can return to preschool and other activities, even if they still have some respiratory symptoms. As their parent or guardian, you determine when your child can return to preschool.

    • Follow these guidelines each time new symptoms appear.
    • Contact your regular healthcare centre or 1177 if you need medical advice.
    • Other procedures may apply in conjunction with contact tracing.

    Updated: 11/30/2021 11:43:42 AM

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  • Listen

    Symptoms of COVID-19 are generally milder in children compared with adults and children are less likely to become seriously ill.

    Read more: COVID-19 in children and young people – a knowledge compilation (version 4) (in Swedish)

    Updated: 9/17/2021 3:44:34 PM

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  • Listen

    In times of insecurity and unrest, children can be affected in different ways. They may worry about their own or their family members’ health, death, parents losing their jobs, financial problems for their family, or that they will not be allowed to go to school. As an adult, is it important to listen and provide support if children want to talk about what is happening in society.

    The WHO provides guidance on how to support children in matters related to COVID-19. 

    Updated: 9/17/2021 3:45:48 PM

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Concern and mental health

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    We all react differently during difficult times. Feelings of stress, anxiety, or fear are natural responses to a crisis. If you feel very worried or have sleeping problems, there are some things you can try do which might help you cope with your feelings:

    • Talk to friends or family about your feelings and don’t hesitate to ask them for support.
    • Use reliable sources of information about COVID-19.
    • Limit the time you spend reading news and social media.
    • Keep your daily routines as much as possible, and do things you find enjoyable and relaxing.
    • Try to get fresh air, and stay physically active.

    The WHO also provide advice on how to cope with stress during the COVID-19 outbreak.

    Updated: 9/17/2021 3:46:46 PM

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