September 18, 2025 — Children's Health Care, Resources
Fall often brings cooler weather, busy school schedules, and, unfortunately, a rise in respiratory illnesses. Two of the most common viruses affecting children during this time are the respiratory syncytial virus (RSV) and influenza, or the flu. Both can spread quickly and cause similar symptoms, but understanding the differences helps parents know what to watch for and when to seek care.
This season, awareness is especially important. With RSV and flu cases expected to increase as children return to classrooms and indoor activities, parents can protect their families by learning the signs, prevention strategies, and when to visit the ER for help.
RSV is a common respiratory virus that usually causes cold-like symptoms. For most healthy older children and adults, RSV is mild and resolves on its own. However, it can be more serious for infants, young children, and older adults.
RSV is usually mild for healthy adults and older children, but it can be more serious for certain groups. Infants under 6 months, older adults, and people with underlying health conditions face a higher risk of severe illness. In these cases, RSV infections may require hospital care to manage breathing problems or other complications.
RSV symptoms often include a runny nose, coughing, sneezing, fever, and decreased appetite. In babies, it can sometimes lead to bronchiolitis or pneumonia, making breathing difficult.
Influenza, or the flu, is another highly contagious respiratory illness. Unlike RSV, the flu tends to cause more severe symptoms that can come on suddenly. According to the CDC, influenza-related hospitalizations among U.S. children under age 5 have ranged from 7,000 to 26,000 per year since 2010.
Typical symptoms include high fever, chills, body aches, sore throat, cough, and fatigue. Children may also experience vomiting or diarrhea. The flu can lead to complications such as ear infections, sinus infections, or even pneumonia, which may require emergency care.
Because RSV and flu share many symptoms, it can be difficult for parents to tell them apart. RSV often starts with a runny nose and progresses gradually, while flu symptoms usually begin suddenly with high fever and body aches. Flu is more likely to cause severe fatigue, while RSV in young children is more likely to cause wheezing or labored breathing.
Ultimately, only testing can confirm which virus is present. At Physicians Premier, rapid flu tests are available on site, providing results quickly so families know the next steps for care.
Both RSV and flu spread more easily when people are indoors and in close contact. As school resumes and the weather cools, children share classrooms, sports, and activities that increase the chance of exposure. The viruses are passed through droplets from coughing, sneezing, or touching contaminated surfaces.
Handwashing, covering coughs and sneezes, and keeping children home when sick remain effective ways to limit spread. The CDC also strongly recommends the annual flu vaccine for everyone 6 months and older as the best protection against influenza.
Parents should monitor their children closely if they develop respiratory symptoms. Signs that need urgent medical attention include:
If these symptoms develop, seek emergency care right away. Physicians Premier offers 24/7 access to board-certified ER doctors who can assess, test, and treat children with RSV or flu concerns.
There is no cure for RSV, but treatment focuses on relieving symptoms and supporting breathing. For mild cases, rest and fluids are usually enough. Severe cases may require oxygen or IV fluids.
For flu, antiviral medications may be prescribed, especially if started within the first 48 hours of symptoms. These medicines can shorten the illness and reduce the risk of complications. At Physicians Premier, on-site tools like X-rays, lab tests, and patient monitoring allow doctors to make fast, accurate treatment decisions.
The best protection involves prevention. Parents can take the following steps to keep children safer this fall:
Parents often wonder when home care is enough and when professional help is needed. Mild symptoms like low-grade fever, cough, and runny nose can usually be managed at home with rest and fluids. However, if your child shows any signs of difficulty breathing, dehydration, high fever, or sudden worsening of symptoms, it is safest to go to the ER. Quick action can prevent complications and give families peace of mind.
Physicians Premier understands that respiratory illnesses rarely happen during convenient hours. That is why our facilities are open 24 hours a day, 7 days a week, including nights, weekends, and holidays. Parents can bring their children in at any time for immediate evaluation and treatment. With locations across Texas, finding care close to home is simple.
RSV and flu are common illnesses during the fall, but with the right knowledge and preparation, parents can take steps to keep their children safe and healthy. By recognizing the symptoms, practicing prevention, and knowing when to seek help, families are better equipped to handle the season.
At Physicians Premier, our mission is to provide compassionate, efficient care for every patient. From on-site diagnostics to board-certified physicians available 24/7, we are here for families whenever emergencies happen. Visit our Locations page to find the ER closest to you – because your child’s health and comfort are always our priority.
Sources
“Chapter 12: Influenza,” Centers for Disease Control and Prevention,
https://www.cdc.gov/pinkbook/hcp/table-of-contents/chapter-12-influenza.html
“About RSV,” Centers for Disease Control and Prevention,
https://www.cdc.gov/rsv/about/index.html
“Who Needs a Flu Vaccine,” Centers for Disease Control and Prevention, https://www.cdc.gov/flu/vaccines/vaccinations.htmlNIH
– Ultrasound in Emergencies: https://pmc.ncbi.nlm.nih.gov/articles/PMC10790072/