What is RSV (Respiratory Syncytial Virus)?

RSV is a common virus that causes lower respiratory infections (bronchiolitis, pneumonia) in infants and young children. Almost all children get RSV by age 2. It's particularly dangerous for babies under 6 months and premature infants.

What are the symptoms of RSV infection?

Early symptoms resemble a common cold: runny nose, cough, mild fever. In severe cases, symptoms include rapid or labored breathing, wheezing, rib retractions, refusal to eat, and extreme fussiness.

When should I take my baby to the hospital?

Seek immediate care if: breathing is rapid or difficult, lips or fingernails turn bluish, feeding drops below half the usual amount, no wet diaper for 6+ hours, or baby is lethargic and unresponsive. For babies under 3 months, consult a doctor even with mild symptoms.

How can I prevent RSV infection?

Hand washing is most important. Avoid contact with sick people and crowded indoor spaces during RSV season. Since 2023, RSV vaccines and preventive antibodies (nirsevimab) are available and recommended for high-risk infants.

RSV Season Guide

January 26, 2026 | Health, Respiratory Illness

Every winter, RSV (Respiratory Syncytial Virus) makes its rounds. What seems like "just a cold" can lead to hospitalization for babies. Here's what every parent needs to know.

What Is RSV?

RSV (Respiratory Syncytial Virus) is a common virus that causes bronchiolitis and pneumonia in infants and young children.

Almost all children get RSV by age 2
Peak season: Late fall to early spring (November-March)
Mild cold in adults, but potentially serious in babies

⚠️ High-Risk Groups
• Babies under 6 months old
• Premature infants (especially born before 32 weeks)
• Babies with congenital heart or lung conditions
• Immunocompromised infants

Recognizing RSV Symptoms

Early Symptoms (Like a Cold)

Runny nose, congestion
Cough
Low-grade fever (around 100°F/38°C)
Decreased appetite

Warning Signs of Severe RSV

Rapid breathing: More than 60 breaths per minute
Labored breathing: Ribs visible with each breath
Wheezing: Whistling sound when breathing
Grunting: Sound with each breath
Blue color: Lips or fingernails turning bluish
Refusing to eat: Too tired to feed

🚨 Emergency - Go to the Hospital NOW!

Breathing is very fast or appears difficult
Lips, fingernails, or skin look bluish or pale
Feeding is less than half of normal
No wet diaper for 6+ hours (dehydration)
Baby is limp, lethargic, or unresponsive
Nasal flaring with each breath

For babies under 3 months, see a doctor even for mild symptoms.

How to Prevent RSV

Everyday Prevention

Hand washing: Most important! Always before touching baby
Avoid sick contacts: Keep away from people with coughs or colds
Avoid crowds: Limit indoor gatherings during RSV season
Clean surfaces: Regularly disinfect toys and doorknobs
Cough etiquette: Teach all family members, including siblings

RSV Prevention (Since 2023)

New prevention options are now available:

Nirsevimab (Beyfortus): Single dose before baby's first RSV season
Maternal vaccine: Given at 32-36 weeks of pregnancy to pass antibodies to baby

💡 Note
These are especially recommended for high-risk infants (premature, heart/lung conditions). Talk to your pediatrician.

Home Care for RSV

Help with Breathing

Saline + suction: Use saline drops and nasal aspirator to clear congestion
Humidity: Run a cool-mist humidifier (40-60%)
Elevate head: Slightly incline during sleep (with towel under mattress)

Hydration

Offer frequent, smaller feeds (hard to eat much at once)
Water or electrolyte solution for babies 6+ months
Monitor wet diapers to track hydration

Fever Management

Fever reducers okay (acetaminophen, ibuprofen - check age)
Dress lightly (avoid overheating)
Lukewarm sponge baths can help

Rest

Provide a calm, comfortable environment for sleep
Hold and comfort a fussy baby
Avoid strenuous activity

RSV vs Common Cold vs Flu

Feature	RSV	Cold	Flu
Key symptoms	Wheezing, breathing difficulty	Runny nose, cough	High fever, body aches
Fever	Low to moderate	Low or none	High (102°F+/39°C+)
Infant risk	High	Low	Moderate to high
Recovery time	1-2 weeks	7-10 days	1-2 weeks

Recovery and Contagiousness

Most babies recover in 1-2 weeks
Cough may linger for 3-4 weeks
Most contagious 3-8 days after symptoms start
Can still shed virus for several weeks after recovery

Key Takeaways

RSV is common but can be serious for young infants.

Prevention is key: hand washing, avoiding sick contacts
Monitor early symptoms carefully
Seek immediate care for breathing difficulties
Ask about preventive antibodies for high-risk babies

Keep your baby healthy this winter! 💪