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Beyfortus
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Sanofi is committed to ensuring an ample supply of Beyfortus to immunize every eligible baby in the US this season.

What is Beyfortus?RSV: Quick Guide For ParentsRSV PrecautionsFAQ About Beyfortus

That's why there's Beyfortus® (nirsevimab-alip) 50 mg and 100 mg injection

Beyfortus® is used to help prevent a serious lung disease caused by Respiratory Syncytial Virus (RSV) in:
  • Newborns and babies under 1 year of age born during or entering their first RSV season
  • Children up to 24 months of age who remain at risk of severe RSV disease through their second RSV season

From Medals to Motherhood: Shawn Johnson East Shares Why She’s Championing Beyfortus

Gold-medal gymnast Shawn Johnson East’s motherhood mantra is doing what she can to try to control the controllables; as a parent, her priority is helping to keep her family healthy and yet, as all moms can agree, there’s still so much she can’t control, like kids catching viruses.

Shawn and Andrew’s kids (Drew and Jett) were both impacted by lung infections caused by respiratory syncytial virus, or RSV. Jett’s lung infection was so serious it resulted in hospitalization.

So, when she gave birth to her third baby, Barrett, known as Bear, Shawn and her husband decided after considering all the options to help protect him with Beyfortus at his first wellness visit.

Watch Shawn and Andrew share their family’s RSV story.

Beyfortus is recommended by the American Academy of Pediatrics (AAP)

Discover Beyfortus, the RSV preventative antibody for babies, and learn more about ways to help safeguard your little one against serious RSV lung infection.
Baby with ECG stickers on chest

What is Beyfortus?

Beyfortus is not a vaccine. It's a preventative antibody that helps protect babies against serious RSV-related lung infections. While antibodies are naturally produced by our immune system to combat viruses, a baby's immune system may not be strong enough to generate antibodies to fight RSV. This is where preventative antibodies play a crucial role in providing additional protection. Beyfortus may not protect all children. Speak to your doctor about Beyfortus for your baby’s RSV protection.

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Typically, Beyfortus is administered as an injection in your baby's thigh, offering fast-acting protection to help prevent serious RSV lung infections like pneumonia. Explore how Beyfortus can help your baby fight against a serious RSV lung infection.
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RSV: a quick guide for parents

RSV is a common, highly contagious infection that can result in respiratory issues for your baby, including severe lung infections. However, most of the time RSV will cause a mild, cold-like illness. Here's what you should know:

<1

It's unpredictable

RSV can go from cold-like symptoms to hospitalization in less than a week.

RSV Signs and Symptoms

3-4

It's persistent

On average, babies hospitalized with RSV stay for 3-4 days in hospital.

Learn When to Seek Medical Attention
16x

It's serious

Babies younger than 1 year are on average 16x more likely to be hospitalized with serious RSV lung infection than with the common flu.

2/3

It's common

2 out of 3 babies will get RSV by age 1.

Help shield your baby from serious lung infections with Beyfortus

Babies' immune systems are still developing, so they can get infections more easily. Beyfortus, an RSV immunization, boosts your baby's immune system to help them fight against serious lung infections like RSV.
Happy parents with baby squezzing mom's nose

Is Beyfortus FDA approved?

Yes, Beyfortus is FDA approved to help prevent serious RSV lung infections in babies. It's also recommended by the American Academy of Pediatrics (AAP).

Beyfortus has been added to the approved immunization schedule for babies and can be given at the same time as other routine childhood vaccines.
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Frequently asked questions about Beyfortus

Beyfortus is an injection given directly to your baby that provides fast-acting antibody protection (immunization) against serious RSV lung infection. Beyfortus is recommended for newborns and babies born during or entering their first RSV season.

Vaccines are like self-defense instructors. They teach the immune system to create its own antibodies.
BeyfortusⓇ is a preventative antibody, which acts like a bodyguard. The RSV injection gives the protection that your baby’s maturing immune system can’t yet provide for itself.

As Beyfortus has been included in the approved immunization schedule, it can be given at the same time as other routine childhood vaccines. This means that it may be available at no cost for parents through private health insurance companies and the Vaccines for Children (VFC) program. VFC is a federally funded program that provides vaccines to children at no cost for those who might not be vaccinated because of an inability to pay. There may be an administration fee.
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The development of Beyfortus took almost 7 years, with the first major clinical trial in babies in 2016. Clinical trials have included healthy babies born at term, premature babies, and babies with underlying health conditions.
Learn More About Beyfortus