How to avoid getting the flu this season (2026–27)

How to avoid the flu: the short list

The best way to avoid the flu is a yearly flu shot in September or October, plus washing your hands often, covering coughs, and keeping sick people apart at home during flu season. Knowing how the flu spreads makes the steps below easier to follow.

Get the 2026-27 flu shot

Why the flu vaccine matters

Annual flu vaccines are designed to protect against the most common strains expected each season. The vaccine is not 100 percent effective, but it makes illness milder and shorter if you do get sick. It also helps prevent serious complications, especially for young children, older adults, and people with chronic health conditions.

Vaccination also protects people who can't get the shot, such as babies under 6 months. Together, these effects lower hospitalizations and save lives.

The 2026-27 US flu vaccines are trivalent (they protect against three strains: H1N1, H3N2, and B/Victoria). All three components have been updated, including a new H3N2 component that targets subclade K (a specific branch of the H3N2 virus family).

When and where to get your flu shot

September or October is ideal for the 2026-27 season. Children who need 2 doses should get the first dose as soon as possible. Adults 65 and older should generally avoid July and August, because protection may wane over the course of the season. Vaccination is still worthwhile after October, as long as flu viruses are circulating.

Vaccines are widely available at clinics, pharmacies, and doctors' offices, so checking where to get a flu shot near you is a quick first step. Many workplaces and schools offer on-site flu shots. Local health departments often run free flu shot events. Not sure which vaccine fits you? Ask Doctronic's medical AI.

For a needle-free option, FluMist Home is a nasal spray that adults 18 to 49 can give themselves and that caregivers can give to children 2 to 17. It is not for people who are pregnant or who have a weakened immune system. Adults 50 and older also have a newer option: mFlusiva, the first mRNA flu vaccine, approved by the FDA in August 2026. For adults 65 and older, a high-dose, recombinant, or adjuvanted vaccine is recommended (types designed to create a stronger immune response in older adults).

Practice good hygiene to limit exposure

• Handwashing: Wash with soap and water for at least 20 seconds to remove germs that can cause flu. If soap is unavailable, use an alcohol-based hand sanitizer. Keep your hands away from your eyes, nose, and mouth, since these are common entry points for the virus.
• Cover your coughs and sneezes: Use a tissue or your elbow to block droplets when you cough or sneeze. Throw tissues away right away and wash your hands afterward. These small steps lower the chance of infecting others or contaminating surfaces.
• Keep surfaces clean: Flu viruses can survive on surfaces for hours, so disinfect frequently touched objects like doorknobs, light switches, and smartphones. Regular cleaning is especially useful in shared spaces such as offices and schools.

How to avoid the flu when someone at home has it

Start by separating the sick person from everyone else as much as your home allows. A person with flu can spread the virus starting a day or so before symptoms appear and for several days after, so protective steps should begin as soon as someone feels unwell. Children and people with weakened immune systems may stay contagious longer.

• Separate rooms: Have the sick person rest in their own room and use a separate bathroom if possible. One healthy adult should do most of the caregiving.
• Masks: The sick person should wear a mask when others are in the room or when they leave their room. The caregiver can wear one too.
• Ventilation: Open windows when the weather allows, or run a fan or air purifier. Fresh air thins out the virus particles that build up in closed rooms.
• Cleaning: Disinfect doorknobs, remotes, phones, and bathroom surfaces daily. Do not share cups, utensils, or towels, and wash dishes and laundry with warm water and soap. Wash your hands after touching used tissues or bedding.

Keep the sick person home until the fever has resolved without fever-reducing medicine and symptoms are clearly improving. Household members who haven't had the 2026-27 flu shot should get it now, though protection takes about two weeks to build. Call a healthcare provider promptly if someone at home is at higher risk of complications, because early treatment options may help. Knowing how long the flu is contagious helps you decide when protective steps can be relaxed.

Antivirals to prevent flu after exposure

If someone in your home has the flu, a healthcare provider may prescribe an antiviral (a medicine that blocks the flu virus from multiplying) to prevent illness in household contacts. These medicines are not a substitute for the flu shot, and they work best when started soon after exposure.

• Oseltamivir: A prescription option for household contacts.
• Zanamivir: An inhaled prescription option for prevention in people ages 5 and older.
• Xofluza (baloxavir): A prescription option for post-exposure prevention in people ages 5 and older.

Which medicine fits depends on age, health conditions, and other medicines. People at higher risk of flu complications, such as older adults, young children, and those with chronic conditions, are often the main candidates.

Antivirals can affect nasal spray vaccines. Oseltamivir and zanamivir may interfere with FluMist if taken from 48 hours before through 2 weeks after vaccination. For peramivir (an IV antiviral used for treatment), the window starts 5 days before, and for baloxavir 17 days before. If that happens, you should be revaccinated with an injectable flu shot.

If you have been exposed and want to know whether preventive treatment makes sense, you can start a chat with Doctronic's medical AI. You can also ask Doctronic about Xofluza after an exposure. It can review your situation and help you decide whether to follow up with a licensed doctor about a prescription.

Sleep, nutrition, and exercise

• Nutrition and hydration: Eat a balanced diet rich in fruits, vegetables, whole grains, and lean proteins to support immune function. Staying hydrated keeps mucous membranes (the moist linings of your nose and throat) healthy, which act as barriers against viruses.
• Sleep and stress management: Adults typically need 7 to 9 hours of sleep per night, and getting enough is crucial for immune health. Chronic stress can weaken your immune response, so relaxation techniques like meditation or exercise may help.
• Regular physical activity: Moderate exercise boosts circulation and immune cell activity. Aim for at least 150 minutes of moderate aerobic activity weekly, such as brisk walking or cycling. Avoid overexertion, which can temporarily suppress immunity.

Watch local flu activity

• Monitor flu activity locally: Flu prevalence varies by region and time, so check local health department reports or trusted news sources. When flu activity rises, add preventive measures such as avoiding large gatherings or wearing a mask in crowded indoor spaces.
• Protect those around you: If you feel unwell, stay home so you do not spread the flu to coworkers, classmates, or family members. Encourage vaccination and good hygiene within your household and social circles to lower risk for everyone.

Frequently Asked Questions

Can the flu vaccine give me the flu?

No, the flu vaccine, in shot form, contains inactivated virus or viral components that cannot cause illness. Some people may experience mild side effects like soreness or low-grade fever, but these are temporary and not the flu itself.

How soon after vaccination am I protected?

It typically takes about two weeks for your body to build full immunity after receiving the flu shot. That is why getting vaccinated early in the season is important.

What should I do if I start showing flu symptoms?

Contact a doctor promptly, since early treatment can reduce the severity and duration of symptoms. Instead of a morning off and an urgent care bill, you can ask Doctronic's medical AI first, or see a licensed doctor by video visit for $39.

Are there any natural remedies to prevent the flu?

While no natural remedy can replace vaccination, maintaining good nutrition, hydration, sleep, and stress management supports your immune system. For more, see how to boost your immune system before flu season. Avoid relying solely on supplements or herbal products without consulting a healthcare professional.

Is it safe to get the flu vaccine if I have allergies?

Most people with allergies can safely receive the flu vaccine. If you have a history of severe allergic reactions to vaccine ingredients, consult your doctor before vaccination. People with an egg allergy can get any flu vaccine that is otherwise appropriate for their age and health status.

The Bottom Line

Several steps work together to avoid the flu. Get the yearly flu shot early in the season. Wash hands often, cover coughs, and clean frequently touched surfaces. If someone at home gets sick, separate them where possible and improve airflow. Sleep, balanced meals, and regular activity support your immune system too. If you've been exposed or feel sick, ask a doctor about antivirals soon, since they work best early.