Fall 2026 School Illness Guide

What Illnesses Are Going Around Schools This Fall?

Flu, COVID-19, RSV, and rhinovirus are all active as kids return to school. Here is what to watch for, when to vaccinate, and how Vira tracks what's spreading near your child's school.

Ask Vira What's Going Around

What Illnesses Are Going Around Schools in Fall 2026?

The four respiratory illnesses most active in schools right now are influenza, COVID-19, RSV, and rhinovirus. Parvovirus B19 (fifth disease) is also circulating and worth knowing about if you or another family member is pregnant.

Rising

Influenza

Nearly 200 children died last flu season from flu-related complications, most of them unvaccinated. Activity is rising now as students return to school.

The 2026-27 flu vaccine is available now at pharmacies and is recommended for everyone 6 months and older.

Action

Vaccinate now. Takes two weeks to build protection.

Rising

COVID-19

Activity is increasing with the return to school. Healthy school-age kids typically have mild symptoms, but transmission to vulnerable family members is the main risk.

Updated 2026-27 COVID vaccine is expected shortly. Recommended for infants 6 to 23 months old; discuss with your pediatrician for older kids.

Watch for

Cold-like symptoms, fever, fatigue.

Circulating

RSV

Most dangerous for children under 2 and immunocompromised kids. Starts like a cold but can progress to wheezing and breathing difficulty within days.

No specific antiviral treatment -- care is supportive. Prevention relies on hand hygiene and limiting exposure in infants.

High risk

Under-2s, preterm infants, immunocompromised.

Peaks in September

Rhinovirus

The leading cause of the common cold. Peaks every September when schools open. Affects concentration, attendance, and can trigger asthma flares.

No vaccine and no specific treatment. Handwashing and avoiding touching the face remain the most effective prevention.

Note

Main cause of the "back to school cold."

Circulating

Parvovirus B19 (Fifth Disease)

Causes a distinctive bright red "slapped cheek" rash followed by a lacy rash on the arms and legs. Mild in most children but dangerous for pregnant women.

Contagious before the rash appears -- by the time you see the rash, the child is usually no longer contagious. Pregnant family members should contact their OB if exposed.

Alert

Dangerous in pregnancy. Notify your OB on exposure.

When Should My Child Get the Flu Vaccine?

Now. The 2026-27 flu vaccine is available at pharmacies and doctor's offices today and is recommended for everyone 6 months and older.

Why fall timing matters

The vaccine takes about two weeks to build full protection. Getting vaccinated now means your child has immunity in place before flu activity peaks in November and December. Waiting until you hear about cases at school is waiting too long.

Who needs it most

Children 6 months to 8 years old getting the flu vaccine for the first time need two doses, four weeks apart. Kids with asthma, heart conditions, or weakened immune systems face higher risk of severe flu complications and should be vaccinated as early as possible.

Rising exemptions

4.2% of kindergartners now have vaccine exemptions, up from 3.6%. Clusters of unvaccinated children in a classroom increase the risk for everyone, including children too young to be vaccinated or with conditions that prevent vaccination.

Example conversation

My 4-year-old had a runny nose and low fever. Could it be flu or RSV?

At this time of year with both circulating, either is possible. RSV usually causes more lower respiratory symptoms -- wheezing, fast breathing, or labored breathing in young kids. Flu tends to come on suddenly with higher fever and body aches. With a 4-year-old, watch for: breathing faster than usual, ribs showing when breathing, or lethargy beyond normal tiredness. Any of those, see a doctor today. If it's just runny nose and low fever with normal energy, keep home, rest, and fluids.

What Are the Signs of RSV in Children?

RSV starts like a cold -- runny nose and mild fever -- but in children under 2 it can progress to wheezing, rapid breathing, and difficulty feeding within 2 to 5 days.

RSV risk by age

Under 2

High risk

Can progress quickly to lower respiratory disease requiring hospitalization. Preterm infants at highest risk.

Ages 2 to 5

Moderate risk

Usually manageable at home but wheezing and breathing difficulty warrant a doctor visit.

5 and older

Usually mild

Typically presents as a cold in healthy school-age children. Higher risk if asthma or immunocompromised.

Go to the ER if your child has

+Breathing faster than normal for their age
+Ribs visible with each breath (retractions)
+Nostrils flaring or grunting sounds
+Difficulty feeding or refusing fluids
+Blue or grayish color around lips or fingernails
+Significant lethargy -- harder to wake than normal

Watch at home if your child has

+Runny nose and mild congestion
+Low-grade fever under 101 F
+Mild cough without wheezing
+Normal feeding and drinking
+Usual energy level with some fussiness

Monitor closely in children under 12 months -- RSV can worsen suddenly.

Example conversation

Is COVID still a concern for healthy kids in 2026?

Yes, though the risk profile has changed. COVID in healthy school-age kids usually presents as mild to moderate cold symptoms now. The bigger concern is spread to unvaccinated grandparents or immunocompromised family members. The updated 2026-27 vaccine is recommended by pediatric groups for children 6 months to 23 months old. For older healthy kids, discuss with your pediatrician.

Frequently Asked Questions

What illnesses are going around schools in fall 2026?

The four respiratory illnesses most active in schools right now are influenza, COVID-19, RSV, and rhinovirus. Influenza is rising and the updated 2026-27 flu vaccine is available at pharmacies today. COVID-19 activity is increasing as students return. RSV is circulating and is most dangerous for children under 2. Rhinovirus peaks in September and is the leading cause of back-to-school colds. Parvovirus B19 (fifth disease) is also circulating and requires notification to any pregnant family members on exposure.

When should I get my child the flu vaccine?

Now. The 2026-27 flu vaccine is available today and recommended for everyone 6 months and older. The vaccine takes about two weeks to build full protection, so getting vaccinated in September or early October puts your child ahead of peak flu season in November and December. Children 6 months to 8 years old who are receiving the flu vaccine for the first time need two doses four weeks apart -- plan accordingly.

What are the signs of RSV in children?

RSV starts like a cold with runny nose and mild fever. In children under 2 it can progress to wheezing, rapid breathing, difficulty feeding, and visible retractions -- the ribs becoming visible with each breath. Go to the emergency room if your child is breathing faster than normal for their age, if you can see the ribs when they breathe, if they are having difficulty feeding or drinking, or if they show signs of significant lethargy. There is no specific antiviral treatment for RSV; care is supportive.

How do I know if my child's school has an outbreak?

Schools typically notify parents after an outbreak is already at its peak, often 3 to 5 days after the first cases appear. By that point, exposure has likely already happened. Vira monitors outbreak and respiratory virus activity near specific zip codes. Text Vira your child's school name or zip code at +1 (669) 285-6109 and she checks what is currently elevated in that area. No app required.

Is COVID-19 still a concern for kids in 2026?

Yes, though the risk profile has changed. COVID-19 in healthy school-age children typically causes mild to moderate cold-like symptoms now. The larger concern is spread to unvaccinated grandparents or immunocompromised family members. COVID-19 activity is rising as students return to school this fall. The updated 2026-27 vaccine is recommended by pediatric groups for children 6 months to 23 months old. For older healthy children, discuss vaccination timing with your pediatrician.

How Vira Helps During Back-to-School Season

Text Vira your child's school name or zip code and she checks current flu, COVID-19, and RSV activity in that area. No app download, no account -- just text.

Vira

+1 (669) 285-6109

Is there flu going around my daughter's school area in Naperville?

Flu activity is moderate in the Chicago metro area including DuPage County right now, above the same week last year. No local school outbreak reports yet but activity is rising. Good week to get her vaccinated if she hasn't already.

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