
RSV: What every parent should
know about the risks for young children
RSV: What every parent should know about the risks for young children
RSV (respiratory syncytial virus) is one of the most common causes of respiratory infections in children, especially during the winter months. For healthy children, the infection often leads to mild symptoms such as a runny nose, cough, and slight fever. However, for infants younger than 3 months and for children with certain underlying medical conditions such as those born prematurely, suffering from chronic lung diseases, congenital heart defects, weakened immune systems, or neuromuscular diseases, RSV can cause serious complications and sometimes be life-threatening. A severe RSV infection in an infant can also increase the risk of the child developing asthma-like symptoms with future colds later in life. Currently, there is no curative treatment for RSV, nor is there a vaccine approved for children. This highlights the need for effective preventive measures, as well as research to develop a vaccine that can protect the most vulnerable children from infection.
If your child is particularly vulnerable to RSV, you can register your interest for upcoming vaccine studies here.


Premature Infants
Premature infants have immature lungs and an underdeveloped immune system, making them particularly vulnerable to infections like RSV. The infection can cause inflammation in the airways and lead to breathing difficulties, often requiring hospitalization.
Children with chronic lung diseases
Children with chronic lung diseases such as cystic fibrosis or bronchopulmonary dysplasia already have reduced lung function, and RSV can significantly worsen their condition. Increased mucus production and inflammation can block the airways and necessitate intensive medical treatment.
“Currently, there is no curative treatment for RSV, nor is there a vaccine approved for children. This highlights the need for effective preventive measures, as well as research to develop a vaccine that can protect the most vulnerable children from infection.”
Helena Litorp
MD, PhD, Assoc. Professor, CTC

Children with congenital heart defects
RSV infection can worsen heart problems in children with congenital heart defects because the infection increases the body's oxygen demand and puts more strain on the heart. This can lead to heart failure or other serious heart complications.
Children with weakened immune systems
For children with weakened immune systems, such as those undergoing chemotherapy or who have had an organ transplant, RSV poses a significant risk. Their bodies struggle to fight off the infection, which can quickly lead to life-threatening complications like sepsis or respiratory failure.


Neuromuscular Diseases and RSV
Neuromuscular diseases like spinal muscular atrophy or cerebral palsy make it difficult for children to keep their airways clear. An RSV infection increases mucus production and worsens breathing difficulties, making prompt medical attention crucial.
Symptoms to watch out for
Symptoms to watch out for include breathing difficulties, bluish skin color (indicating lack of oxygen), high fever, feeding difficulties, and unusual tiredness. If any of these symptoms appear, it is important to seek medical help immediately.
The Importance of Early Intervention
Early intervention and careful monitoring can be crucial to avoid serious complications. Parents and caregivers should have a clear plan in consultation with the child's doctor, which includes regular check-ups for the child's underlying condition and specific instructions on when and where to seek care if their condition worsens.
Preventive Measures Against RSV
To prevent RSV infection in at-risk children, good hand hygiene, limited contact with sick individuals, and a smoke-free environment are important. In some cases, immunoprophylaxis with monoclonal antibodies, such as palivizumab, may be an option to protect high-risk children during the epidemic season. There is an approved RSV vaccine for adults, but currently no vaccine approved for children.

