Adenoviruses
Adenoviruses are a group of viruses that cause cold and flu-like symptoms. Learn more about the symptoms and treatment of adenoviruses.
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Respiratory viruses
Respiratory viruses cause illnesses that affect your respiratory system, which includes your nose, throat and lungs. These types of viruses can cause similar symptoms, such as cough, fever, headache, runny nose, sneezing, sore throat, aches and fatigue. Common respiratory viruses include influenza, enterovirus, respiratory syncytial virus (RSV) and adenovirus.
Bronchiolitis
Bronchiolitis is a common chest infection in babies that affects their breathing. Urgent treatment can be needed. Find out when to call for help.
Bronchitis
Bronchitis is inflammation of the airways in your lungs, which causes a cough. Learn about the symptoms and treatment of acute bronchitis.
Chest infection
Chest infections are common in people of all ages. Find out more about the causes of chest infections, their symptoms and treatments.
Colds
A cold is a viral infection that affects your nose and throat. Find out about the common cold, including symptoms, treatment and when to see your doctor.
Coughs and colds in children
Most coughs and colds in children are caused by viruses. Find out how to treat your child and prevent them from developing and spreading a cold.
COVID-19
COVID-19 is a contagious disease caused by coronavirus SARS-CoV-2. Read about how to avoid infection, when to get tested and treatment for COVID-19.
Croup
Croup is very common in children under 5 years old. Learn about croup symptoms, treatment, and when to seek urgent medical help.
Cytomegalovirus (CMV)
Cytomegalovirus (CMV) is a common viral infection. Learn more about how CMV is spread, its symptoms and how to reduce your risk of infection.
Ear infection
Ear infections are a common type of infection, usually caused by bacteria or viruses. Learn about types of ear infections, symptoms and prevention.
Enterovirus in children
Enteroviruses cause a range of illnesses which are usually mild. You can help prevent the spread of enterovirus infection by practising good hygiene.
Flu (influenza)
Influenza is a viral infection that affects your nose and throat. Find out more about the flu and how to protect yourself by getting vaccinated.
Glandular fever
Glandular fever (also called 'kissing disease') is an infectious disease common in teenagers and young adults. Learn how glandular fever can spread.
Human metapneumovirus (HMPV)
Human metapneumovirus (HMPV) is a respiratory virus that usually causes a mild illness. Learn more about the symptoms and treatment of HMPV.
Human parainfluenza viruses (HPIVs)
HPIVs infect the respiratory tract and have symptoms like a cold. They spread via coughs and sneezes. Children and immunocompromised are at higher risk.
Laryngitis
Laryngitis is when your voice box (larynx)and vocal cords are inflamed. It usually gets better on its own, but see your doctor if symptoms continue.
MERS
Middle East respiratory syndrome (MERS) is caused by a coronavirus. It can cause fever, cough and shortness of breath. Find out more about MERS here.
Otitis media (middle ear infection)
Otitis media (middle ear infection) is common and often resolves without treatment. Learn to recognise the symptoms and when it might need treatment.
Pneumonia
Pneumonia is inflammation of the lungs that can be very serious. It's often caused by bacterial or viral infections. Learn how to prevent pneumonia.
Respiratory syncytial virus (RSV)
RSV is a virus that causes infection in the lungs and airways. Read on to learn more about symptoms, diagnosis, management and prevention.
Rhinovirus
Rhinovirus causes the common cold, it has mild symptoms but can be serious in some people. Learn more about rhinovirus symptoms and treatment.
Severe acute respiratory syndrome (SARS)
Severe acute respiratory syndrome (SARS) is a viral disease that can cause severe pneumonia. Know what to do in a future outbreak.
Sinusitis (rhinosinusitis)
Sinusitis is inflammation of the hollow spaces in the skull behind and between the eyes, forehead and cheeks. Read more about symptoms and treatment.
Sore throat (pharyngitis)
Pharyngitis is a symptom of a bacterial or viral infection and common with a cold or flu. Learn how to care for a sore throat and when to see a doctor.