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Preventing respiratory illness in infants

RSV Prevention in Newborns: Vaccine, Breastfeeding, and Other Essential Tips on Illness Prevention from a Second-Time Mom

November 5, 2024

As the Director at Sanu, a Registered Nurse, Certified Breastfeeding Specialist, and soon-to-be mother of two, I understand the heightened concern many parents feel about respiratory syncytial virus (RSV), a common but potentially severe infection for infants, as well as preventing other common illnesses that crop up around this time of year. RSV is one of the main causes of hospitalizations among young children, and newborns are especially vulnerable due to their developing immune systems. Fortunately, recent advancements bring some relief: the CDC now recommends the RSV vaccine for expectant mothers between weeks 32 and 36 of pregnancy, offering newborns added protection in those critical first few months.

The vaccine works by transferring antibodies from mother to baby, which can significantly reduce the risk of severe RSV infection by about 57% within the baby’s first six months—a time when RSV poses the greatest risk. Data from recent studies affirm the vaccine’s safety, showing no increase in preterm birth or adverse outcomes, which is a huge reassurance for parents and healthcare providers alike. By taking this step, mothers can give their babies an extra layer of immunity before they’re even born, helping to buffer their young immune systems against this prevalent virus.

Finding the RSV vaccine took some persistence, as my OB-GYN’s office didn’t carry it and several pharmacies in my area were out of stock. With demand high during RSV season, I recommend planning early and making an appointment as soon as you reach 32 weeks to ensure you’re able to get it within the CDC’s suggested window. By starting early, you can maximize your chances of accessing this critical layer of protection for your baby.

Practical Precautions Beyond Vaccination

Alongside vaccination, we can take additional precautions to shield infants from potential infections. Limiting visitors in the early weeks is one key approach, as fewer contacts mean fewer chances for viruses to spread. At SANU, we take infection prevention very seriously, implementing policies like social distancing for infants and mask-wearing for all staff to minimize potential exposure. We encourage parents to adopt similar practices at home, particularly during high-risk seasons.

Another important step is to ask family and friends to avoid kissing the baby, as close contact with an infant’s face can easily spread viruses. RSV, like other respiratory illnesses, is often transmitted through saliva and respiratory droplets, making this a simple yet impactful protective measure.

The Role of Breastfeeding in Immune Support

Breastfeeding offers additional immune benefits, especially in the context of RSV prevention. When a baby’s saliva comes into contact with the breast during nursing, it triggers an immune response in the mother, who then produces specific antibodies in her milk to help fight the infection. This is a powerful mechanism through which breastfeeding can support a baby’s immunity. Breast milk also contains stem cells, which contribute to immune system development, giving breastfeeding infants an added layer of immune resilience.

Taking these proactive steps, including considering the RSV vaccine and practicing strict infection control, can help protect newborns from serious illnesses and set them up for a healthy start.

Why RSV Prevention is Especially Important During the Newborn Phase

Newborns are at the highest risk for severe RSV complications because their immune systems are still developing. For parents, protecting their little ones from illness is particularly critical in the first few months, as even minor infections can quickly escalate. According to the CDC, RSV is a leading cause of hospitalizations in infants under one year old, with symptoms that can range from mild cold-like signs to severe respiratory distress, especially for babies in their first few months of life​. Since most babies don’t reach a strong immune status until later in infancy, the prenatal RSV vaccine is a timely way to provide them with a layer of defense right from birth.

At SANU, we understand the unique vulnerability of newborns and emphasize a comprehensive approach to infection prevention, from vaccination support to sanitation protocols. By making choices that limit exposure and enhance immune support, parents can help create a healthier environment during these formative months.

References

Centers for Disease Control and Prevention. (2023). Respiratory Syncytial Virus (RSV): Information for Health Care Providers. Available at: https://www.cdc.gov

Cleveland Clinic. (2024). RSV Vaccine for Pregnant Women Protects Newborns. Retrieved from https://my.clevelandclinic.org

NewYork-Presbyterian. (2024, September 3). New Study Confirms Prenatal RSV Vaccine is Safe. Retrieved from https://www.nyp.org