Join the more than 6 million moms who've had their babies Beyrified—verified they got Beyfortus—a layer of protection against serious RSV
What is RSV?
RSV, or respiratory syncytial virus, is a common virus that spreads quickly and easily, especially during colder months. As a parent, it’s important to learn about RSV and how Beyfortus can help protect your baby from severe RSV lung infection.
RSV is the leading cause of hospitalization in babies under 1.
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2 out of 3 babies will get RSV by age 1.
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RSV is unpredictable—while most cases are mild, it’s hard to know which babies will get it or how severe it may become.
Get to know Beyfortus
Beyfortus is a preventive antibody designed to help protect babies from serious RSV lung infection. It's not a vaccine—it works by providing the antibodies that a baby's developing immune system lacks to help them fight RSV.
Beyfortus is the #1 prescribed RSV protection for babies. It's for babies entering their first RSV season and may be given in the hospital at birth or during any visit with their pediatrician within their first year. Now's a good time to explore how Beyfortus can help protect your baby this RSV season.
Is Beyfortus right for my baby?
Beyfortus is a prescription medicine 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 pep talks to protection: iconic moms get real about RSV and Beyfortus
6 million* parents and counting know what it means to take action against RSV. Watch these 5 moms—Gaby Dalkin, Shawn Johnson-East, Mandy Moore, Elaine Welteroth, and Katya Echazarreta—share why getting their babies Beyrified with Beyfortus was part of their plan to help protect their little ones.
*6 million is estimated based on sales data (through Oct 2024)
“With Lou, we were very proactive. We talked to her pediatrician about RSV, and he was really adamant that no matter if your baby is born before or during virus season, it’s important to help protect them with Beyfortus. So we got Lou immunized the first week of October.”
Mandy Moore— actress and mom of Gus, Oscar, and Lou
Read about their RSV experiences
GABY: Hi, guys! Come in!
MANDY: Hi, friend! Thank you for hosting, wow!
GABY: Thanks for coming!
KATYA: This place looks amazing!
GABY: Hi, how are you!
KATYA: Good!
ELAINE: Hi!
GABY: Hi!
ELAINE: Okay, this place is a vibe!
GABY: I mean I just threw everything in the laundry room, but thank you!
KATYA: It’s amazing.
SHAWN: Hi!
GABY: You know that planning one of these is like solving a puzzle blindfolded. I’m so happy you guys are all here!
ALL: Wow, thank you!
ELAINE: This is gorgeous.
GABY: You’re welcome.
SHAWN: We have got so much to catch up on. Also, it smells amazing!
MANDY: Yeah, it does. And shout-out to Elaine for that teething toy link for Lou—she is loving it. And speaking of our little ones… Katya, how are you feeling going into winter virus season?
KATYA: Honestly? A little more at ease. I know some of you have been through it—RSV especially—and your stories helped so much.
SHAWN: It is no joke. As I told you all, when Jett got RSV and he ended up in the emergency room, I’ll never forget the sound of him struggling to breathe. And then when Bear was born in the middle of RSV season, Andrew and I didn’t hesitate, we asked our pediatrician about Beyfortus, and we talked to him about it right away.
MANDY: Both Gus and Ozzie got RSV when they were babies and we were lucky that it didn’t require a hospital trip, but it still, like, really shook us.
MANDY: So, with Lou we were very proactive. We talked to her pediatrician about RSV, and he was really adamant that no matter if your baby is born before or during virus season, it’s important to help protect them with Beyfortus. So, we got Lou immunized the first week of October.
ELAINE: Amazing.
SHAWN: And now, a little break for safety information. (Nods to Mandy)
MANDY: I got this one! (turns to camera to read to audience)
Beyfortus helps prevent a serious lung disease caused by RSV for babies under 1 born before or during their first RSV season, and certain kids up to 24 months.
Your child should not take Beyfortus if your child has a history of serious allergic reactions to nirsevimab-a-l-i-p or any of the ingredients in Beyfortus.
It’s important to talk about it, and the common side effects, with your baby’s doctor.
An-n-n-d-d now back to our regularly scheduled Moms Night!
GABY: Well done, Mandy! And I did talk to my — I mean our — pediatrician about it. I got Finn in the day after you guys were there. And I know as moms there’s nothing worse than seeing our babies in pain and shot days can be the worst, but I know getting Beyfortus would ultimately be less painful than a potential trip to the hospital with RSV.
ELAINE: You guys, our baby got Beyfortus during just a regular checkup, didn’t have any side effects, didn’t even cry—okay? I cried, he was fine! I just wish more parents knew to ask about it and to take their questions to the doctor.
KATYA: Okay…real talk? I don’t always feel like I know what I’m doing as a first-time mom. But making the decision to get Beyfortus for baby M, it just felt like a win. You all sharing the experiences seriously made the biggest difference.
SHAWN: That “Am I doing this right?” feeling never goes away. Welcome to the club.
MANDY: Which is why moms have to be there to lean on each other — especially when we’re drowning in onesies and unanswered texts. No one gets it like another mom.
GABY: Let’s raise a toast! To BEYFORTUS
ALL: Before RSV!
ALL: Cheers!
SHAWN: Join us and millions of moms who know Beyfortus is the real deal, and have your baby Beyrified, too.
MANDY: Talk to your doctor.
ELAINE: Ask about it early.
KATYA: And check out more at Beyfortus.com.
IMPORTANT SAFETY INFORMATION
Your child should not take Beyfortus if your child has a history of serious allergic reactions to nirsevimab-alip or any of the ingredients in Beyfortus.
Before your child receives Beyfortus, tell your healthcare provider about all of your child's medical conditions, including if your child:
- has ever had a reaction to Beyfortus.
- has bleeding or bruising problems. If your child has a problem with bleeding or bruises easily, an injection could cause a problem.
Tell your healthcare provider about all the medicines your child takes, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Your infant should not receive a medicine called palivizumab if they have already received Beyfortus in the same RSV season.
Serious allergic reactions have happened with Beyfortus. Get medical help right away if your child has any of the following signs or symptoms of a serious allergic reaction:
- swelling of the face, mouth, or tongue
- difficulty swallowing or breathing
- unresponsiveness
- bluish color of skin, lips, or under fingernails
- muscle weakness
- severe rash, hives, or itching
The most common side effects of Beyfortus include rash and pain, swelling, or hardness at the site of your child's injection. These are not all the possible side effects of Beyfortus. Call your healthcare provider if you have questions about side effects.
INDICATION
Beyfortus is a prescription medicine used to help prevent a serious lung disease caused by Respiratory Syncytial Virus (RSV) in:
- Newborns and babies under l 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.
Please see accompanying full Prescribing Information including Patient Information linked.
Support & resources
Ready to talk to your baby’s doctor? We can help.
Starting the conversation about RSV protection can feel overwhelming, but a little bit of prep can go a long way. Our doctor discussion guides include simple, helpful questions to bring along to your next visit so you don’t have to figure it out on the spot.
Parent-to-be guide PDF
New parent guide PDF
that we wanted to prioritize for our family.”
Help and guidance from day one
Whether you’re learning about RSV for the first time or getting ready for a pediatrician visit, we’re here to help. On our parent resources page, you can sign up for personalized updates and download helpful resources—all in one place.
Your child should not take Beyfortus if your child has a history of serious allergic reactions to nirsevimab-alip or any of the ingredients in Beyfortus.
Before your child receives Beyfortus, tell your healthcare provider about all of your child’s medical conditions, including if your child:
- has ever had a reaction to Beyfortus.
- has bleeding or bruising problems. If your child has a problem with bleeding or bruises easily, an injection could cause a problem.
Tell your healthcare provider about all the medicines your child takes, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Your infant should not receive a medicine called palivizumab if they have already received Beyfortus in the same RSV season.
Serious allergic reactions have happened with Beyfortus. Get medical help right away if your child has any of the following signs or symptoms of a serious allergic reaction:
- swelling of the face, mouth, or tongue
- difficulty swallowing or breathing
- unresponsiveness
- bluish color of skin, lips, or under fingernails
- muscle weakness
- severe rash, hives, or itching
The most common side effects of Beyfortus include rash and pain, swelling, or hardness at the site of your child’s injection. These are not all the possible side effects of Beyfortus. Call your healthcare provider if you have questions about side effects.
Please see full Prescribing Information, including Patient Information, for more details.
Click here to learn more about Sanofi’s commitment to fighting counterfeit drugs.
Beyfortus is a prescription medicine 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.
