A sick woman wrapped in a blanket blowing her nose with a tissue while holding her forehead.

Flu season is the time of year when influenza viruses tend to spread more widely and flu infections become more common. In the United States, flu activity generally increases during the fall and winter, although influenza viruses can circulate throughout the year. The timing and severity of flu season can vary from one year to another, so understanding the general seasonal pattern can help you recognize symptoms, take preventive measures, and know when to seek medical care.

When Does Flu Season Start?

There is no fixed date when the flu season starts each year. In the United States, influenza activity generally begins to increase during the fall and becomes more widespread as the season progresses. However, the exact timing can vary depending on the year and location. Because influenza viruses can circulate outside the traditional flu season, it is also possible to get the flu at other times of the year.

When Is Flu Season at Its Peak?

Flu activity in the United States is generally highest during the winter, although the peak can occur at different times from one season to another. Some seasons experience increased activity earlier, while others reach their highest levels later. For this reason, it is more useful to pay attention to current flu activity and public health guidance than to rely on a specific date or month.

When Does Flu Season End?

Flu activity typically decreases after the winter period, but influenza can continue spreading into the spring. There is no specific date when flu season officially ends because the duration and intensity of influenza activity vary from season to season. Influenza viruses may also continue circulating at lower levels after seasonal activity has declined.

Can You Get the Flu Outside of Flu Season?

Yes, you can get the flu outside of the traditional flu season. Although influenza activity is generally higher during the fall and winter in the United States, flu viruses can circulate throughout the year. Travel can also expose people to influenza because flu activity occurs at different times in different parts of the world.

What Are the Symptoms of the Flu?

Flu symptoms often appear suddenly and can include fever or chills, cough, sore throat, runny or stuffy nose, muscle or body aches, headache, fatigue, and weakness. Some children may also experience vomiting or diarrhea. Not everyone with influenza develops a fever, so the absence of a fever does not necessarily mean that you do not have the flu.

Flu symptoms can overlap with those of other respiratory infections, which can sometimes make it difficult to determine the cause based on symptoms alone. If symptoms are severe, persistent, or concerning, a healthcare professional can help determine whether further evaluation is needed.

How Long Does the Flu Last?

Many people begin to feel better within several days, but some symptoms, particularly fatigue and cough, can last longer. Recovery time varies depending on factors such as age, overall health, and whether complications develop.

Certain groups have a higher risk of serious flu complications, including young children, older adults, pregnant people, and individuals with certain underlying health conditions. People in these groups should discuss flu prevention and treatment options with their healthcare professional.

How Can You Prevent the Flu?

Several steps can help reduce your risk of getting or spreading influenza. Annual flu vaccination is one of the primary ways to reduce the risk of influenza and its complications. The CDC recommends flu vaccination for people 6 months and older, with certain exceptions based on individual medical circumstances.

Good hygiene can also help reduce the spread of influenza. Wash your hands regularly with soap and water, especially after coughing, sneezing, or spending time in public places. Avoid close contact with people who are sick, stay home when you are sick when possible, cover your mouth and nose when coughing or sneezing, and regularly clean frequently touched surfaces.

Who Is at Higher Risk of Flu Complications?

While anyone can develop influenza, some people are more likely to experience serious complications. Higher-risk groups can include young children, older adults, pregnant people, people with certain chronic health conditions, and people with weakened immune systems.

If you or someone in your household falls into one of these groups, talking with a healthcare professional about flu prevention and what to do if symptoms develop can be helpful.

When Should You See a Doctor for the Flu?

Many people recover from influenza without medical treatment, but medical attention may be necessary if symptoms are severe, worsening, or interfering significantly with normal activities. Difficulty breathing, chest pain or pressure, severe weakness, confusion, or signs of dehydration can require urgent medical attention.

You should also contact a healthcare professional if symptoms improve and then suddenly become worse. People at higher risk of flu complications may benefit from contacting a healthcare professional early after symptoms begin.

Get Medical Care for Flu Symptoms

If you or a loved one is experiencing flu symptoms, worsening respiratory symptoms, or concerns about your illness, seeking timely medical care can help you get the appropriate evaluation and treatment. East Houston Medical Center provides healthcare services to help patients address a range of illnesses and health concerns. If you are unsure whether your symptoms require medical attention or they are becoming more severe, visit East Houston Medical Center to learn more about available services and get the care you need.

Key Takeaways

Frequently Asked Questions

When is flu season in the United States?

Flu activity in the United States generally increases during the fall and winter and can continue into the spring. The exact timing varies from year to year.

Can you get the flu outside of flu season?

Yes. Influenza viruses can circulate throughout the year, although activity is generally higher during the traditional flu season.

Why is the flu more common during fall and winter?

Influenza has seasonal patterns, and people may also spend more time indoors and in closer contact with others during colder periods. These factors can contribute to increased transmission.

How can I protect myself during flu season?

Getting an annual flu vaccine, practicing good hand hygiene, avoiding close contact with people who are sick, and staying home when you are sick can help reduce the spread of influenza.

Does everyone with the flu have a fever?

No. Some people with influenza do not develop a fever. Other symptoms, including cough, body aches, fatigue, and sore throat, can still occur.