Pneumonia is inflammation of the lungs, usually caused by an infection. Most people get better in 2 to 4 weeks, but babies, older people, and people with heart or lung conditions are at risk of getting seriously ill and may need treatment in hospital.

Symptoms of pneumonia can start suddenly or gradually over a few days.

They include:

• a cough – you may cough up yellow or green mucus (phlegm)
• shortness of breath
• a high temperature
• chest pain
• an aching body
• feeling very tired
• loss of appetite
• making wheezing noises when you breathe – babies may also make grunting noises
• feeling confused – this is common in older people

Ask for an urgent GP appointment or get help from NHS 111 if:

Call 999 if:

You'll usually be given antibiotics to treat pneumonia. Most people get better in 2 to 4 weeks.

Some people are more at risk of becoming seriously ill. You may need to go to hospital for treatment if:

• you're over 65
• you have cardiovascular disease or a long-term lung condition
• your baby or young child has pneumonia
• you're very unwell

In hospital you'll usually be given fluids and antibiotics to treat the infection. You may also be given oxygen to help you breathe.

You may be sent for an X-ray of your chest and blood tests to check for other conditions.

Important

If you're given antibiotics to take at home, contact your doctor if you do not feel better after taking them for 2 to 3 days.

There are some things you can do to help with recovery from pneumonia and reduce the risk of spreading it to other people.

Pneumonia is usually caused by a bacterial or viral infection.

You can catch it from someone who has it, or you can sometimes get it if you have another infection such as flu or coronavirus (COVID-19).

It can be caused by a fungal infection but this is rare in healthy people in the UK.

It may also be caused by something getting into your lungs, such as water or food (aspiration pneumonia).

If you're at risk of getting seriously ill with pneumonia, it's recommended you get the pneumococcal vaccine, also known as the pneumonia vaccine. It protects against an infection that can cause pneumonia.

People at high risk include:

• babies
• adults aged over 65
• people with heart, lung, liver, kidney or neurological conditions with a risk of aspiration
• people with diabetes
• people with a weakened immune system, for example, you have a condition that stops your immune system working properly, or you are having treatment to suppress your immune system

Adults and children more at risk should also get a flu vaccine every year.

You can ask a GP or pharmacist about both vaccines.

Stopping smoking also reduces your chance of getting pneumonia.