When many children are coughing and sniffing in the fall or winter, the term RSV often comes up. This understandably makes many parents nervous, especially when it comes to babies. How dangerous is RSV? How can I recognize the infection? And when should my child be examined by a doctor?

The good news: Most RSV infections are like a common cold and heal on their own. However, in young babies and some at-risk children, RSV can cause more severe respiratory issues. Therefore, it's worth monitoring the situation closely.

What is RSV?

The Respiratory Syncytial Virus (RSV) is one of the most common causes of respiratory infections in infants and young children.

Almost all children experience at least one RSV infection within their first two years of life. Infections are particularly common in the fall and winter months.

RSV is primarily spread through droplets and close contact and is highly contagious.

What symptoms does RSV cause?

The illness often begins like a regular cold.

Typical symptoms include:

  • Runny nose
  • Cough
  • Mild to moderate fever
  • Sneezing
  • Reduced appetite
  • Fatigue
  • Difficulty feeding

Many children only have these symptoms and recover within a few days.

Why RSV can be more problematic in babies

In infants, the airways are still very narrow. Even small swellings or mucus can make breathing difficult.

Especially babies under six months old are more likely to develop what is known as bronchiolitis – an inflammation of the small airways.

This can lead to:

  • Rapid breathing
  • Labored breathing
  • Wheezing sounds
  • Retractions between the ribs or under the chest
  • Difficulty feeding

That's why pediatricians pay special attention to breathing in cases of RSV.

Which children are at higher risk?

A more severe course is more likely in:

  • Babies under six months
  • Premature infants
  • Children with heart or lung conditions
  • Children with certain neurological conditions
  • Children with weakened immune systems

For these children, the threshold for seeing a pediatrician is often lower.

How to recognize warning signs?

A pediatric examination should be done promptly if your child:

  • Breathes significantly faster or with more difficulty
  • Shows retractions between the ribs or at the neck
  • Makes wheezing or groaning sounds while breathing
  • Hardly drinks
  • Has significantly fewer wet diapers
  • Appears unusually sleepy or hard to wake
  • Develops bluish lips or skin
  • Is younger than three months and has a fever of 38.0 °C or higher

If your child experiences severe difficulty breathing or a bluish discoloration, you should immediately call emergency number 112.

How is RSV treated?

For otherwise healthy children, there is usually no specific antiviral treatment for RSV.

The focus is on supporting the body.

This includes:

  • ensuring adequate fluid intake
  • keeping the nose clear with saline solution
  • allowing rest and sleep
  • treating fever as needed based on pediatric advice

Antibiotics do not help against RSV, as the illness is caused by viruses.

In more severe cases, hospital treatment may be necessary, for example, if children need oxygen or fluids via an IV.

How long does an RSV infection last?

Most children feel significantly better after about one to two weeks.

The cough may persist for several weeks, as with other respiratory infections.

Especially in the first days of illness, symptoms may initially worsen before gradually improving.

Can RSV be prevented?

RSV cannot be completely avoided.

However, the risk can be reduced by:

  • regular handwashing
  • minimizing contact with people who have colds
  • avoiding smoking around the child
  • regular ventilation of rooms
  • thorough cleaning of frequently used objects

Preventive antibodies are also available for particularly vulnerable infants. Recently, this RSV prophylaxis has been recommended for many newborns. Discuss with your pediatric practice whether it is suitable for your child.

RSV or a common cold?

Based on symptoms alone, RSV often cannot be reliably distinguished from other cold viruses.

For parents, this is usually not crucial. More important is the question:

  • How well is your child breathing?
  • Is your child drinking enough?
  • Does your child seem overall stable?
  • Are the symptoms developing as expected, or are they worsening?

These observations often provide more insight than the exact virus name.

Key points for RSV

Most RSV infections are uncomplicated and can be managed at home. However, it is crucial to closely monitor breathing and fluid intake, especially in young infants. If your child is having increasing difficulty breathing, is barely drinking, or appears significantly sicker overall, they should be promptly examined by a pediatrician.