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School nurse taking a student's temperature in the health office during flu season
School Nurses

Cold and Flu Season: What Schools Need Families to Know

By Adi Ackerman·October 20, 2026·5 min read

Parent reviewing a school illness policy guide at home with a child who looks unwell

Cold and flu season creates predictable pressure on school health offices every year. Students arrive sick because families are not sure whether symptoms warrant staying home. Others return too soon after an illness and spread it to classmates. A clear seasonal communication from the school nurse, sent before illness peaks, addresses most of this before it happens.

The goal is not to alarm families or trigger unnecessary absences. It is to give families the specific, practical information they need to make good decisions about school attendance when their child is unwell.

The stay-home threshold families actually need

Many families err in both directions during cold and flu season, sending children to school when they are clearly contagious, or keeping them home for minor symptoms that do not require exclusion. A communication that states the actual threshold clearly reduces both errors.

The standard guidance is: fever of 100.4 degrees or higher, vomiting or diarrhea within the past 24 hours, or being too ill to participate in school activities. The 24-hour fever-free rule before returning to school is the most important and most commonly ignored. State it directly.

Annual flu vaccination

The flu vaccine is the most effective way to reduce both the severity of illness and transmission in a school community. Include a direct recommendation for annual flu vaccination in your seasonal communication, along with information about where families can access the vaccine locally, including community health clinics and pharmacies that offer it at low or no cost.

School staff vaccination matters too. Classrooms with vaccinated teachers have lower student illness rates. If your school offers staff flu vaccination, communicate that information to families as well. It signals that the school is taking prevention seriously across the whole community.

What the health office does when illness increases

During high-illness periods, families benefit from knowing what to expect from the health office. Explain how the nurse monitors illness trends, what triggers a communication to the broader community, and how the nurse coordinates with classroom teachers when absences are elevated.

Families who understand the health office's role during flu season are more likely to notify the nurse when their child is diagnosed, which gives the nurse better data for tracking and response.

Handwashing and prevention habits at school and home

Prevention messaging works best when it is specific and practical rather than general. Describe what handwashing looks like at your school, how often students are prompted to wash hands during the day, and what surfaces are cleaned more frequently during high-illness periods. Give families parallel guidance for home: handwashing before meals and after blowing noses, not sharing cups or utensils, and cough etiquette.

For younger students, flu season is a teachable moment for hygiene habits that reduce illness transmission year-round. A brief note about what your school is reinforcing in classrooms helps families reinforce the same habits at home.

How to reach the health office

Every seasonal illness communication should include the direct phone number and email for the health office, the nurse's name, and the best time to reach them. Families who know how to contact the school nurse directly are more likely to call before sending a sick child to school or to ask whether a specific symptom warrants exclusion.

A nurse who is reachable before a situation escalates prevents more illness and more disruption than one who is only heard from after a student has already been sent to school sick.

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Frequently asked questions

When should families keep a child home from school during cold and flu season?

Keep a child home if they have a fever of 100.4 degrees Fahrenheit or higher, have vomited or had diarrhea within the last 24 hours, have a severe sore throat especially with white patches or swollen glands, are too ill to participate in normal school activities, or have been diagnosed with a communicable illness that requires exclusion under school policy. The standard return-to-school rule for fever is 24 hours fever-free without fever-reducing medication. When in doubt, contact the school nurse.

How does the flu spread in schools and what reduces transmission?

Influenza spreads primarily through respiratory droplets when an infected person coughs, sneezes, or talks, and through contact with contaminated surfaces followed by touching the face. In school settings, transmission is reduced through frequent handwashing, proper cough and sneeze etiquette (into the elbow, not the hand), keeping surfaces clean, and staying home when symptomatic. Annual flu vaccination is the single most effective prevention measure and reduces both illness rates and school absenteeism.

What is the difference between a cold and the flu, and does it matter for school?

The flu typically has a more sudden onset than a cold, with higher fever, body aches, fatigue, and headache that are more severe. Colds more commonly cause runny nose and are less likely to cause the systemic symptoms of flu. From a school perspective, the distinction matters because the flu is more contagious and more serious, particularly for young children and immunocompromised students. Students with confirmed flu should stay home until they are fever-free for 24 hours and feeling well enough to participate fully in school activities.

Should families tell the school nurse when their child is diagnosed with the flu?

Yes. When a student is diagnosed with confirmed influenza, notifying the school nurse allows the health office to monitor for a potential outbreak among classmates, communicate with other families who may have been exposed, and take additional preventive measures if multiple cases arise. Families do not need to share a formal diagnosis to notify the nurse, but letting the health office know when a student has confirmed flu (vs. a general cold) is useful for school-level illness tracking.

How can Daystage help school nurses communicate flu season guidance to families?

Daystage lets school nurses send a clear, seasonal illness communication directly to every family at the start of flu season, covering when to keep children home, what symptoms to watch for, and how to contact the health office. Timely direct communication reaches families before illness peaks rather than after.

Adi Ackerman

Adi Ackerman

Author

Adi Ackerman is a former classroom teacher and curriculum writer with 8 years in K-8 schools. She writes about school communication, parent engagement, and what actually works in real classrooms.

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