Press ESC to close

How Long Do RSV Symptoms Last for Infants and Toddlers?

Respiratory syncytial virus, or RSV, is a common virus that can cause respiratory illness in infants and toddlers. The symptoms of RSV can vary from child to child, but typically include fever, coughing, and difficulty breathing. 

In some cases, RSV can lead to more severe health complications, such as pneumonia. In this blog post, we will discuss the symptoms and treatment of RSV in infants and toddlers, and answer the question, “How long do RSV symptoms last in kids?”

What Causes RSV in Infants and Toddlers?

kid with irritated nose

There are several possible causes of RSV in infants and toddlers. Let us explore these causes in more detail below:

Exposure to People Who Have the Virus

Exposure to the respiratory syncytial virus (RSV) can occur through direct contact with people who have the virus, such as when infected individual coughs or sneezes. The close proximity between a person and their contacts increases the likelihood of contracting RSV.

For example, living in crowded environments and lacking access to basic hygiene measures such as hand-washing facilities can contribute to the virus’s rapid spread. 

Furthermore, contact with any surface that the virus has contaminated plays an important role in the transmission of RSV. Therefore, ensuring proper hygiene and maintaining distance from those infected is key to containing the spread of this contagious infection.

Inadequate Immune System

Respiratory syncytial virus (RSV) is a contagious and dangerous virus that affects the lungs. It can lead to severe respiratory problems in infants, young children, older adults, and those with weakened immune systems. 

A weakened immune system is a contributing factor in contracting RSV, making it more likely to get severe symptoms if infected. An inadequate immune system caused by conditions such as diabetes, HIV/AIDS, renal failure, and certain medications are all risk factors for developing RSV.

Immune-compromised persons should take extra precautions when exposed to a situation where the virus is likely to be present. Inadequate immune systems can also cause difficulty fighting off the virus if it’s contracted. 

Immunocompromised individuals should speak with their physician about preventative measures they can take to lessen the chance of getting infected with RSV.

Environmental Factors

Environmental factors are essential in incidences of respiratory syncytial virus (RSV). These include unclean air and residential crowding, which have been identified as prominent factors by numerous studies. Polluted air, for example, has been correlated with the development and severity of RSV infection.

Crowding may also lead to an increase in the transmission of the virus, particularly in resource-limited environments where handwashing facilities are not readily available or limited. It is important to limit further spread by implementing basic prevention measures such as washing hands frequently with soap and water.

Viral Strains

As with many viruses, the strains of the respiratory syncytial virus (RSV) can vary and certain strains may be more severe than others. Research has demonstrated that some viral strains are more likely to cause severe illness in infants, while others tend to produce milder symptoms. 

Therefore, it is crucial to be aware of the different strains, as they may influence a person’s risk of developing more severe symptoms.

Viral strains that cause RSV usually contain two types of protein antigens called ‘G’ and ‘F’, which help to identify different categories for diagnosis. Without preventive measures such as vaccines or treatments, infected persons cannot spread the disease to others. 

As such, it is important to understand the sources of RSV, particularly certain viral strains’ role in causing this illness.

What Are the Most Common Symptoms of the RSV?

kid sneezing

The most common symptoms of Respiratory Syncytial Virus (RSV) include:

  • Dry cough 
  • Stuffy nose 
  • Runny nose 
  • Trouble breathing
  • Sore throat 
  • Fever

These symptoms may cause increased mucus production in the lungs, resulting in bronchiolitis or pneumonia; more severe cases can result in inflammation of other parts of the respiratory system as well.

Common complications from RSV infection include ear infections, wheezing due to difficulty breathing, and a persistent cough that can last for weeks or months. In premature infants and those with underlying medical conditions such as neural tube defects, RSV can be especially dangerous because their immune systems are not yet developed enough to fight off the virus effectively.

Individuals with these conditions need to monitor themselves closely for signs and symptoms of RSV infection so they can seek necessary treatment quickly. 

Otherwise, the virus can cause serious complications, including hospitalization and even death. It is also essential to take preventive measures such as frequent hand-washing and to avoid crowded areas where the virus is more likely to spread.

If you or someone in your family experiences RSV symptoms that last more than a few days, it’s important to contact your doctor immediately. Early diagnosis and treatment are critical for avoiding serious complications.

Is the RSV More Dangerous for Infants and Toddlers?

While RSV is a common virus that affects people of all ages, it is particularly concerning for infants and toddlers due to the potential severity of symptoms. Symptoms can range from typical cold-like systems—such as a runny nose, low-grade fever, or mild cough—to more severe respiratory issues like difficulty breathing or wheezing.

Infants and babies are especially at risk due to their immature immune systems and underdeveloped lungs, making them more susceptible to illness and complications. In some cases, hospitalization may be necessary for adequate treatment. 

Parents of infants should practice good handwashing habits with their children and keep them away from crowds to decrease the risk of contracting this virus.

How Long Do RSV Symptoms Last in Infants and Toddlers?

toddler and baby in bed

RSV symptoms in infants and toddlers usually last between 5 and 8 days. The most severe symptoms typically occur during the first 3-4 days, while milder symptoms may linger for another 4-5 days. 

It’s important to note that infants with RSV may be contagious for up to three weeks after their initial diagnosis; this means that even if symptoms have subsided, it’s important to keep your child away from other people who may be susceptible to the virus.

It is also important to note that some infants and toddlers may experience complications due to RSV, such as bronchiolitis or pneumonia. If you notice any of these signs in your child, it’s important to seek medical attention immediately.

Additionally, infants with weakened immune systems or chronic health conditions may be at an increased risk for complications and should be closely monitored by their healthcare provider.

It is also important to remember that RSV can come back, so if your child had it previously, they may be more likely to contract it again. 

The best way to protect your child is to get them vaccinated and practice preventative measures such as frequent hand washing, avoiding close contact with individuals who are sick, and covering coughs and sneezes. 

Following these simple steps can help keep your family healthy and safe from RSV and other contagious illnesses.

How Is RSV Treated in Infants and Toddlers?

RSV is generally a mild infection, and most infants and toddlers will recover without any treatment. However, very young babies, those born prematurely, or those with weakened immune systems may require additional support to help them get through the illness. 

Treatment for RSV in these cases may include:

Intravenous Fluids

Intravenous (IV) fluids are commonly used as a treatment option for RSV. If a patient has an infection resulting in signs and symptoms of dehydration, such as low urine output, dry mouth, and fatigue, they may be prescribed IV fluids to replace lost fluids and electrolytes. 

The preferred IV fluid is typically one that contains just saltwater, although glucose or lactated Ringer’s solution may also be used depending on the patient’s condition. IV fluids can also be used to treat RSV if the patient has excessive loss of fluids due to prolonged vomiting or diarrhea.

Additionally, IV fluids are sometimes prescribed for patients with severe pulmonary infections in order to help them keep their bodies hydrated. All in all, IV fluids are a viable treatment for RSV because they make it easier for patients to replenish any lost bodily fluids and electrolytes.

Nebulizer Treatments

Nebulizer treatments have been shown to be an effective intervention for RSV or respiratory syncytial virus. It is a treatment that is performed with the use of a nebulizer machine, which is connected to the patient and converts liquid medication into a mist that the individual breathes in through a face mask or mouthpiece.

This treatment works by helping open up and clear out the lungs, allowing your child to breathe more easily if they suffer from RSV symptoms, including severe coughing and wheezing. 

It’s important to note that nebulizer treatments may need to be administered multiple times throughout the day and over several days, depending on how severe your child’s RSV infection is.


RSV (respiratory syncytial virus) is a common infectious disease that typically affects infants and young children, causing severe breathing difficulty and other symptoms. Thankfully, there are some treatment options for people affected by RSV. 

One of these treatments is the use of antibiotics, which have been found to be successful at treating both mild and severe cases depending on early diagnosis and prompt medical attention.

In addition to antibiotics, supportive treatments such as oxygen therapy may also be used to help manage the symptoms of RSV until resolution. It’s important to consult a healthcare provider if you or your child is showing any signs of the virus since treatment can significantly reduce the severity and duration of an RSV infection.


Occasionally, RSV (respiratory syncytial virus) can cause severe complications that require additional treatment. For instance, immunoglobulin therapy may be recommended to prevent a secondary bacterial infection and reduce the severity of the illness. 

This involves injecting a concentrated solution of antibodies into your child’s bloodstream, which helps fight off the virus and can even prevent it from returning.

Immunoglobulin therapy can also potentially reduce symptoms like coughing, wheezing, and shortness of breath associated with RSV. It may be used in severe cases or for young babies who are at a higher risk for developing complications due to the virus.

Overall, immunoglobulin therapy is an effective treatment option for reducing the severity of RSV and helping your child recover faster. It’s important to note that this type of treatment should only be administered by a healthcare professional as it can be dangerous if not properly done.

These are just some treatments for RSV (respiratory syncytial virus). It’s important to speak to a doctor if you or your child is showing any signs of the virus so that they can recommend the best possible treatment plan. 

Early diagnosis and prompt medical attention can significantly reduce the severity and duration of an RSV infection. With proper care, most cases of RSV will resolve within a few weeks.

When Should You Take an Infant or Toddler With RSV to the Hospital?

crying toddler

If an infant or toddler with RSV has difficulty breathing, has a fever over 101°F (38.3°C), or is straining to breathe, take them to the hospital immediately. 

Other signs of severe RSV include fast breathing, blueness in the lips or fingernails, wheezing, decreased activity, or sucking in of the chest with each breath. If any of these signs are present, seek medical attention immediately.

If an infant or toddler with RSV has a milder form of the virus, they may not need to go to the hospital. However, it is important that parents speak with their child’s doctor to determine the best course of action. The doctor may recommend that the child be monitored closely at home, or they may suggest hospitalization for supportive care.

It is important to note that some infants and toddlers with RSV can develop a more severe form of the virus, so it is important to watch for any changes in symptoms and call the doctor if needed.

What Happens if RSV is Ignored?

A lot of parents make the mistake of ignoring the signs of RSV, or they may mistake the symptoms for a common cold. However, if RSV is ignored, it can lead to more severe complications such as pneumonia or bronchiolitis.

In some cases, children with RSV that are left untreated can develop respiratory failure and require hospitalization. Even after treatment, long-term health problems such as asthma or chronic lung disease can occur.

Wrapping Up

RSV is a highly contagious virus that can cause severe respiratory illness. It is especially dangerous for infants and young children, and immunocompromised individuals also risk more serious complications from the virus. 

Vaccines are available to help protect against RSV infection, but it is important to take precautions to prevent the virus’s spread. These include washing your hands often, avoiding contact with anyone who is sick, and practicing good hygiene.

If someone you know has RSV, be sure to follow the doctor’s instructions for treatment and keep everyone in the household away from them until they have recovered. By taking these steps, you can help protect yourself and your loved ones from the potentially devastating effects of RSV.

Frequently Asked Questions

How long does RSV take to recover?

RSV recovery depends on the severity of the virus. It takes 1-2 weeks for mild cases to fully recover and up to 4 weeks for more severe cases. Recovery may take longer if there are underlying health conditions or complications. Contact your healthcare provider if symptoms do not improve or worsen after two weeks.

How long does the peak of RSV last?

The peak of RSV usually begins in late fall or winter and can last until spring, depending on the region's climate. It typically lasts about three to four months. The peak may be longer in some regions due to a prolonged cold season.

How contagious is RSV?

RSV is highly contagious and can spread quickly amongst family members, daycare centers, schools, and hospitals. It is spread through direct contact with saliva, mucus from the nose or throat, and airborne droplets from coughing or sneezing. Therefore, practicing strict hygiene and social distancing measures is important when in close contact with infected individuals.

What are the long-term effects of RSV?

In most cases, the symptoms of RSV are mild and go away without long-term effects. However, in some cases, particularly in infants and young children, RSV can lead to complications such as bronchiolitis and pneumonia, which may have long-term respiratory effects. It is important to contact your healthcare provider if you notice any symptoms of RSV in yourself or your child.

Can adults get RSV?

Yes, adults can get RSV. Although it is more common in children, adults may still become infected with the virus. Symptoms are typically milder in adults than in children and may include coughing, sneezing, a runny nose, and low-grade fever.

How long do RSV symptoms last for infants and toddlers?

In infants and toddlers, RSV symptoms may last for up to 3 weeks or longer. Symptoms can include coughing, sneezing, a runny nose, decreased appetite, and low-grade fever. It is important to contact your healthcare provider if you notice any of these symptoms in yourself or your child.

Leave a Reply

Your email address will not be published. Required fields are marked *

Welcome to All Things Childcare

We value giving our readers the most up-to-date information on news and tips related to childcare. Parents and grandparents can visit All Things ChildCare and expect to find interesting articles, tips, and news on caring for children.