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Infants
RSV (respiratory syncytial virus) causes cold-like symptoms in most children, but it can be serious for babies, especially in the first six months. For the 2026-27 season, the American Academy of Pediatrics recommends RSV protection for all babies under 8 months born during or entering their first RSV season, either through a vaccine during pregnancy or an antibody shot for the baby. Most daycares let children return once they are fever-free for 24 hours, breathing comfortably and eating well.
Here is what parents of babies in group care should know. Updated November 2026 with the AAP's September 2026 RSV policy.
RSV season usually runs from fall through spring. Symptoms often start like a cold:
In young babies, the only signs may be irritability, poor feeding or less activity. Symptoms are often worst on days 3 to 5.
If your baby is struggling to breathe or turning blue, call 911.
RSV spreads through coughs, sneezes and touching surfaces and then the face. It can live on hard surfaces for hours. Babies and toddlers in group care share toys and hands, so it moves through a classroom quickly.
Most children have had RSV by age 2. According to the CDC, it is a leading cause of hospital stays for babies in the United States.
Babies need one of these two options for their first RSV season, not both in most cases:
Talk to your pediatrician about which option fits your family, ideally before your baby starts daycare, and ask your insurance or the clinic about coverage. Our article on Illinois daycare immunization requirements covers the vaccines centers require.
Most centers follow a common rule of thumb. Your child can usually return when they:
A lingering cough or runny nose is common for a couple of weeks and does not always mean your child must stay home. Check your center's policy and our guide to daycare fever rules.
Antibiotics do not treat RSV, because it is a virus.
Usually 3 to 8 days. Young babies can spread the virus for up to 4 weeks, even after symptoms improve.
Not while they have a fever or trouble breathing. Many centers allow return after 24 hours without fever if your child is breathing and eating well.
Ask your pediatrician. The AAP recommends protection for all babies under 8 months in their first RSV season unless the birth parent received the RSV vaccine at least 14 days before delivery.
Usually yes. Pediatric guidance says a past RSV infection does not remove the recommendation, because babies can be infected again in the same season.
Yes. Later infections are usually milder.
At Children's Land, if a child becomes sick during the day, they rest away from other children and our director calls your emergency contact. Our infant program gives each baby a primary teacher who knows their routine. Find a location near you.
Related reading: How Often Do Daycare Kids Get Sick in the First Year?