COVID-19
A respiratory illness caused by the coronavirus SARS-CoV-2.
Reviewed by TinyDose editorial team
COVID-19 is caused by the SARS-CoV-2 coronavirus. In children it is usually mild, often no worse than a cold, but babies under six months and children with underlying conditions are more likely to need hospital care. Of all the vaccines on a childhood schedule, this is the one whose recommendations change most often: which children are offered it, and how many doses, has been revised repeatedly and differs between countries. Treat your national guidance as current and this page as background.
Symptoms
- Fever and cough
- Runny nose and sore throat
- Tiredness and headache
- Loss of taste or smell, more often in older children
- Vomiting or diarrhoea, which is more common in children than adults
How it spreads
Spreads through respiratory particles breathed out by an infected person, most easily indoors and in close contact.
Why it's serious
Serious COVID-19 is uncommon in healthy children, and this is genuinely reassuring. Where vaccination is recommended it is usually aimed at the younger infants and the children with underlying conditions who account for most hospital admissions.
- Pneumonia and difficulty breathing
- Croup, particularly in toddlers
- MIS-C, a rare inflammatory condition appearing weeks after infection
- Longer-lasting symptoms such as fatigue, sometimes called long COVID
Most at risk: Infants under six months, and children with heart or lung conditions, obesity, diabetes, neurological conditions or a weakened immune system.
How to prevent COVID-19
Vaccination is the most effective protection. COVID-19 is prevented by:
Treatment
Usually managed at home with rest, fluids and attention to fever. Specific antiviral treatments are reserved for children at high risk and are prescribed by a doctor.
Common questions
Sources
- COVID-19 vaccines: WHO advice · WHO, 2026.
- COVID-19 Vaccination for Children · CDC, 2026.
Information on this page is compiled from authoritative public health sources and written in TinyDose's own voice. It is intended for general understanding only. Always follow your pediatrician's guidance.
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From the blog
All guides →This information is provided by TinyDose for general understanding only and is not medical advice. Vaccine names, ages and doses can vary by country, brand and individual circumstances. Always follow the guidance of your pediatrician or local health authority for your child’s vaccination schedule.
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