Before the First Fever: Getting Ready for Flu Season

The best time to prepare for flu is before the first fever. Once someone in the family wakes up with chills, body aches, and that unmistakable feeling of being flattened, even small decisions can feel like work. Having a few things ready can make those first hours easier and help you get treatment when it matters most. This fall, I’m paying attention to H1N1, particularly viruses carrying a mutation called G155E. My approach is practical: have tests ready, make a treatment plan, and support your body while it recovers. What’s different this season? In the CDC’s report for the week ending October 10, 2026, H1N1 accounted for 96.4% of influenza A viruses subtyped by public health laboratories. That’s a snapshot of those tested viruses, rather than a count of every flu infection. A recent preprint, a study that had not yet undergone peer review, found that G155E substantially reduced antibody neutralization in some people’s blood samples, particularly those from teenagers and young adults. That raises questions about susceptibility. It does not establish that everyone under 25 is disproportionately likely to become infected or seriously ill. In my practice so far this fall, younger people do seem to be getting hit hard. I’m watching that pattern, while remembering that one clinician’s experience is only part of the picture. Our immune histories matter. The flu infections and vaccines we’ve encountered help shape how we respond to the next one. The virus is changing, but this is still seasonal H1N1. Have tests and a treatment plan ready I like having FDA-authorized or cleared home flu tests available before anyone gets sick. Check expiration dates, age instructions, and directions for collecting the sample. When symptoms begin, test promptly according to the instructions. A negative result does not rule out flu. A positive result usually points toward flu, although false positives can occur too. Share the result and your symptoms with your clinician. For eligible patients, I appreciate the simplicity of Xofluza (baloxavir): a single dose. It is approved to treat uncomplicated flu in people ages 5 and older when started within 48 hours of symptom onset. It can also be prescribed for prevention after close contact with someone who has flu, within 48 hours of that contact. The right antiviral depends on the person. Baloxavir is not recommended during pregnancy or breastfeeding, or for hospitalized patients. Call promptly, especially if you or your child has a higher risk of complications. Don’t wait for a positive test before seeking advice. Other antivirals can still help after 48 hours, particularly with severe illness or higher risk. A pot of tea and a little daylight When I’m feeling ill, I like brewing a pot of tea and taking small, comfortable sips throughout the day. Warm, not scalding. Tea offers comfort and fluids. There’s also intriguing laboratory research from Kyoto Prefectural University of Medicine: green tea, matcha, and black tea inactivated certain SARS-CoV-2 variants under experimental conditions. That makes me curious. But those experiments do not establish that drinking tea clears influenza from your mouth or throat, prevents transmission, or speeds recovery. We don’t have evidence for a virus-clearing schedule of sipping every 15 minutes. For me, a pot of tea is still a welcome companion to recovery. If you feel up to it, a little quiet time outside in daylight can be welcome, too. Keep your distance from others while sick, and let your energy guide you. Think of daylight as part of a restful day, rather than a proven treatment for flu. Keep the foundations Stay current with your flu vaccine. Even as circulating viruses change, annual vaccination remains an important way to reduce the risk of flu and its serious complications. Prioritize sleep and fluids. And here’s another reason to protect your sleep: research links insufficient sleep around vaccination with a weaker antibody response. Give yourself the opportunity for good rest, without postponing vaccination because you had a rough night. Help freshen indoor air by opening windows when practical and using a properly sized HEPA air cleaner. Cleaner air can help reduce exposure to respiratory viruses. Know when home care needs to become medical care. Seek urgent help for trouble breathing, persistent chest pain, significant dehydration, confusion, or symptoms that improve and then return or worsen. Any fever in a baby younger than 12 weeks needs prompt medical attention. Before the first fever, check the tests. Know whom you’ll call. Make room for rest. A little preparation now can make a difficult day feel much more manageable. References and Resources Centers for Disease Control and Prevention. Weekly US Influenza Surveillance Report: Key Updates for Week 40, ending October 10, 2026. October 16, 2026. Kikawa C et al. Near real-time data on the human neutralizing antibody landscape to influenza virus in summer of 2026 shows antigenic advance of H3N2 subclade K region D mutants and H1N1 D.3.1.1 Sa mutants. bioRxiv. 2026. Preprint, not peer reviewed. doi:10.64898/2026.09.15.751855. U.S. Food and Drug Administration. Influenza Diagnostic Tests. Centers for Disease Control and Prevention. Rapid Diagnostic Testing for Influenza: Information for Clinical Laboratory Directors. Centers for Disease Control and Prevention. Influenza Antiviral Medications: Summary for Clinicians. Shin-Ya M et al. Effects of tea, catechins and catechin derivatives on Omicron subvariants of SARS-CoV-2. Scientific Reports. 2023;13:16577. doi:10.1038/s41598-023-43563-3. Centers for Disease Control and Prevention. Key Facts About Seasonal Flu Vaccine. Spiegel K et al. A meta-analysis of the associations between insufficient sleep duration and antibody response to vaccination. Current Biology. 2023;33(5):998-1005.e2. doi:10.1016/j.cub.2023.02.017. Centers for Disease Control and Prevention. Taking Steps for Cleaner Air for Respiratory Virus Prevention. Centers for Disease Control and Prevention. Signs and Symptoms of Flu. The post Before the First Fever: Getting Ready for Flu Season appeared first on DrGreene.com.