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About RSV

(respiratory syncytial virus)

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What is RSV?

Respiratory syncytial (sin-SISH-uhl) virus, or RSV, is a common and contagious respiratory virus that infects the nose, throat, and lungs.

RSV causes a mild, cold-like illness, but for some babies, it can become worse after a few days of being sick. Up to 30% of infants experiencing their first infection can develop bronchiolitis (an infection in the small airways of the lung) or pneumonia (an infection of the lungs). RSV can be unpredictable. If your baby gets RSV, it is hard to know if it will be a mild or severe infection.

Symptoms of RSV often look like a common cold and can include:

  • Runny or stuffy nose
  • Eating or drinking less
  • Coughing
  • Fever
  • Increased fussiness (cranky)
  • Less active than usual

RSV can worsen, affect the lungs, and turn into lung disease, leading to symptoms such as:

  • Having a hard time breathing (rapid breathing or grunting)
  • Moments when breathing stops for more than 10 seconds
  • Noisy breathing and wheezing
  • Flaring (spreading out) of the nostrils while breathing
  • Difficulty drinking or eating
  • Lips, mouth, and fingernails turning blue

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Get medical help right away if your baby is struggling to breathe, not drinking enough fluids, or if their symptoms are getting worse.

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How do babies get RSV?

  • Playing with or sharing toys that could carry the virus
  • Getting hugs and kisses from family
  • Visiting public places like daycares

Which babies get RSV?

Over 70% of babies hospitalized with RSV were healthy with no history of health issues or pre-existing conditions. Some babies may have a higher chance of severe lung disease from RSV if they:

  • Were born early (premature), or
  • Developed chronic lung disease due to being born early (prematurity), or
  • Were born either early (premature) or on time (full-term) with certain types of heart disease

RSV is the most common cause of serious lung disease and the leading cause of hospital stays in babies under 12 months old.

What is ENFLONSIA?

Frequently Asked Questions about ENFLONSIA

What is ENFLONSIA?

ENFLONSIA is a prescription medicine to help prevent lung disease, including severe lung disease, caused by respiratory syncytial virus (RSV) in newborns and babies who are born during or entering their first RSV season.

Important Safety Information

Your child should not get ENFLONSIA if they have had a serious allergic reaction to any of the ingredients in ENFLONSIA.

 

Before your child gets ENFLONSIA, tell their healthcare provider about all your child’s medical conditions, including if your child is scheduled to have heart surgery during or entering their first RSV season, and all the medicines your child takes, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

 

Serious allergic reactions have happened with other medicines like ENFLONSIA. Tell your child’s healthcare provider and seek medical care right away if your child has any of the following signs or symptoms of a serious allergic reaction, which may include swelling of the face, mouth, or tongue, difficulty swallowing or breathing, unresponsiveness, bluish color of skin, lips or under fingernails, muscle weakness, and severe rash, hives, or itching.

 

The most common side effects of ENFLONSIA are redness and swelling where your child got the injection and rash. These are not all the possible side effects of ENFLONSIA. Call your child’s healthcare provider for medical advice about side effects.

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.

 

Please read the accompanying Patient Information for ENFLONSIA, and discuss it with your doctor. The physician Prescribing Information also is available.

What is ENFLONSIA?
Important Safety Information

ENFLONSIA is a prescription medicine to help prevent lung disease, including severe lung disease, caused by respiratory syncytial virus (RSV) in newborns and babies who are born during or entering their first RSV season.

Important Safety Information

Your child should not get ENFLONSIA if they have had a serious allergic reaction to any of the ingredients in ENFLONSIA.

 

Before your child gets ENFLONSIA, tell their healthcare provider about all your child’s medical conditions, including if your child is scheduled to have heart surgery during or entering their first RSV season, and all the medicines your child takes, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

 

Serious allergic reactions have happened with other medicines like ENFLONSIA. Tell your child’s healthcare provider and seek medical care right away if your child has any of the following signs or symptoms of a serious allergic reaction, which may include swelling of the face, mouth, or tongue, difficulty swallowing or breathing, unresponsiveness, bluish color of skin, lips or under fingernails, muscle weakness, and severe rash, hives, or itching.

 

The most common side effects of ENFLONSIA are redness and swelling where your child got the injection and rash. These are not all the possible side effects of ENFLONSIA. Call your child’s healthcare provider for medical advice about side effects.

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.

 

Please read the accompanying Patient Information for ENFLONSIA, and discuss it with your doctor. The physician Prescribing Information also is available.