How To Avoid Catching And Spreading Covid 19

Overview

COVID-19 is an illness caused by a virus called SARS-CoV-2. It mainly affects the nose, throat and lungs, but it can affect other parts of the body too. Some people have mild symptoms, some have no symptoms, and some become seriously unwell.

Yes. COVID-19 spreads easily and has been widespread around the world. It can spread in homes, workplaces, schools, hospitals and crowded indoor places.

Anyone can catch COVID-19, at any age. Older adults, pregnant people, and people with weakened immune systems or long-term health conditions are more likely to become seriously unwell.

Symptoms

Common symptoms

• Fever or chills
• Cough
• Sore throat
• Runny or blocked nose
• Tiredness
• Headache
• Muscle aches
• Loss or change of smell or taste
• Shortness of breath
• Feeling sick, vomiting or diarrhoea

Symptoms in children

• Symptoms are often mild or absent
• Fever
• Cough
• Runny nose or sore throat
• Tummy upset, vomiting or diarrhoea
• Unusual tiredness
• Sometimes a rash

Symptoms in older adults

• Fever may be absent or lower than expected
• New confusion or drowsiness
• Falls or weakness
• Breathlessness that gets worse
• Not eating or drinking enough
• Dehydration
• Symptoms can start quietly and become serious quickly

Causes

Main causes

• Breathing in tiny droplets and aerosols (very small particles in the air) from an infected person who coughs, sneezes, talks or breathes nearby
• Close contact with someone who has COVID-19, especially indoors
• Touching surfaces that have the virus on them and then touching your eyes, nose or mouth — this is less common than airborne spread

Risk factors

• Being in crowded indoor spaces with poor airflow
• Spending a long time close to someone who is infected
• Not being vaccinated or not keeping up with recommended vaccinations
• Having a weakened immune system or a long-term health condition
• Being older, especially over 60
• Being pregnant
• Living in crowded housing or a care setting

When to see a doctor

See a doctor urgently if:

• You have severe breathlessness, chest pain, confusion, or cannot stay awake
• You are at higher risk and have symptoms or a positive test — ask for advice the same day
• You are dehydrated or cannot keep fluids down
• Symptoms get worse after a few days of feeling better
• A child is struggling to breathe, is very sleepy, or is not drinking

Book a routine appointment if:

• You have mild symptoms and want advice about testing or isolation
• You tested positive and need a note for work or school
• Symptoms last more than 4 weeks or you feel very tired for a long time
• You have questions about vaccination or prevention
• You are planning travel or need advice because you live with someone at high risk

Diagnosis

A healthcare provider can usually suspect COVID-19 from your symptoms and recent contact with someone who has it. Testing confirms it. Home tests are common, and a healthcare provider may arrange a lab test if needed.

Tests that may be done

• Rapid antigen tests (lateral flow tests) check for pieces of the virus and can give results in minutes
• PCR tests are lab tests that look for the virus's genetic material and are more sensitive
• Home test kits may be used and reported according to local guidance
• If you are very unwell, a healthcare provider may check oxygen levels, breathing, blood tests or a chest X-ray

What to expect at your appointment

Most tests use a swab from the nose, throat or both. Results may come in minutes or within a few days. If you test positive, follow local advice about staying away from others and tell people you have been close to if that is recommended.

Treatment

Most people manage COVID-19 at home with rest, fluids and simple symptom relief. There is no cure that works for everyone, but the body's immune system usually clears the virus. People at higher risk may be offered specific treatments early. In hospital, care focuses on supporting breathing, fluids and treating complications.

Self-care at home

• Rest and get plenty of sleep
• Drink fluids regularly to avoid dehydration
• Eat small meals if you do not feel hungry
• Ask a pharmacist about safe over-the-counter options for fever or aches
• Keep rooms ventilated by opening windows when possible
• Stay away from others while you may be infectious, following local guidance
• Monitor your symptoms and ask for help if they worsen

Medical treatments

Healthcare providers treat COVID-19 based on how unwell you are and your risk level. For people at high risk, a clinician may assess whether prescription antiviral or antibody treatments are suitable. These must be started early and are not right for everyone. In hospital, treatment may include oxygen, fluids, close monitoring and care for complications. Vaccination remains the best way to reduce the chance of severe illness.

When is surgery considered?

Surgery is not used to treat COVID-19. Rarely, surgery may be needed for a complication, but this is uncommon.

Living with this condition

While you may be infectious, stay home and away from others as local guidance advises. If possible, sleep in a separate room and use a separate bathroom. Wear a well-fitting mask around others, open windows, clean often-touched surfaces, and monitor your symptoms. Return to normal activities slowly when you feel ready.

Lifestyle tips

• Get regular sleep and take breaks during the day
• Avoid smoking and vaping, which can harm your lungs
• Stay connected with friends and family by phone or video
• Keep up with routine health appointments and vaccinations
• Wash hands often with soap and water or use hand gel
• Cover coughs and sneezes and clean shared surfaces

Diet and exercise

Eat balanced meals and drink fluids regularly. During recovery, try gentle movement such as short walks if you feel able. Avoid strenuous exercise until you are fully recovered, and build up slowly. Ask a healthcare provider if you are unsure about returning to exercise.

Mental health and emotional wellbeing

Being unwell or isolating can cause loneliness, worry or low mood. This is common and it is okay to ask for help. If you feel overwhelmed or in crisis, contact your local emergency number or a local mental health crisis service right away. Talking to a healthcare provider can also help you find support.

Prevention

Yes, but no single step is perfect. Layering steps works best: vaccination, good ventilation, hand hygiene, masks in crowded places, and staying away from others when unwell all help reduce spread.

Vaccines

COVID-19 vaccines are safe and effective at reducing severe illness, hospital care and death. They also help lower spread. Follow your local vaccination schedule, including boosters if offered. Ask a healthcare provider if you have questions about vaccination and your health.

Screening programmes

Testing helps find infection so you can avoid spreading it. Test if you have symptoms, if a local health service advises it, or before visiting someone at high risk. Follow local guidance on reporting results and isolation.

Complications

If left untreated

• Severe pneumonia (lung infection that makes breathing hard)
• Low oxygen levels and need for breathing support
• Blood clots
• Damage to organs such as the heart, kidneys or brain
• Long COVID — symptoms that last weeks or months, such as tiredness, breathlessness or brain fog
• In rare cases, death

Long-term outlook

Most people recover fully from COVID-19, and vaccination and early care greatly reduce the risk of severe illness. Some people need more time to recover or have lasting symptoms, and support is available. Taking prevention steps and asking for help early can make a real difference.

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