How Long Does Fever Last with Flu?

Many conditions are considered to be very common in the general population, affecting millions each and every year. Flu, a condition that causes a variety of unpleasant symptoms, is one particular condition that is widely discussed due to the widespread prevalence of this viral infection. One study reports that up to five million people in European countries are affected by severe flue on an annual basis. Additionally, up to 500,000 people die each year in these countries due to the flue. Furthermore, up to 30% of children and up to 10% of adults will be affected by flu every single year.

Flu is a term that is used to refer to infection by the influenza virus. This is a type of viral infection that affects the patient’s upper airway. Many symptoms can develop and, while the condition can often resolve within just a couple of days, complications can develop that can cause potentially life-threatening events to occur.

Fever is one of the most common symptoms caused by the influenza virus and can be quite unpleasant. In this post, we’ll take a look at how long fever tends to last when a person is infected with the influenza virus. We will also take a look at what causes the influenza virus, the symptoms that develop with this condition, and also consider the most effective ways to treat the condition quickly and easily.

Causes And Risks Of Influenza

The flue is caused by the infiltration of viruses in the human body. These viruses are tiny germs that enter the body and then start to multiply. In reaction to the infection by these viruses, the immune system then starts to produce cells that are known as antibodies, which is sent toward the location where the virus is found to fight off the germs. Over a hundred of different viruses can cause flu.

Understanding the risk factors for flu can also help you determine whether you need to be extra careful due to a higher chance of being infected with the influenza virus. If you live in an area where the virus is especially common, or your local area is facing an epidemic with the virus at the moment, then this automatically increases your risk.

Other risk factors include:

  • Children are more likely to suffer from flu than adults. The elderly are also at a higher risk.
  • Certain chronic diseases and medical conditions are known to cause an increased risk of influenza virus infections. Examples include cancer and diabetes.
  • A weak immune system, such as in people with HIV/AIDS, also causes an increased risk of being infected with the virus.
  • Pregnant women are also at a higher risk.
  • Obesity is another risk factor that plays a part in the risk of becoming infected with the influenza virus and developing flu.

Symptoms Of Influenza

Flu usually results in symptoms that are more severe as compared to the common cold. Most people who contract the influenza virus also find that their symptoms develop rapidly after being exposed to the virus. The primary symptoms that signal an infection of the influenza virus are most often very similar to the symptoms that a person experiences when they contract the common cold.

Some of the specific symptoms that the influenza virus tends to cause include:

  • Fever is very common in patients with flu.
  • Joint pain is also very common and can be accompanied by muscle aches.
  • A dry cough, along with a runny or a stuffy nose.
  • Extreme levels of fatigue and feeling tired all the time.
  • A significant reduction in appetite.
  • Headaches are also very common in patients who develop influenza.

When the influenza virus affects a child or a baby, then additional symptoms may also develop. These symptoms often include gastrointestinal symptoms, which often costs of nausea that may be accompanied by vomiting.

How Long Fever Tend To Last With The Influenza Virus

Being infected with the influenza virus and developing flu is a condition that takes longer to improve as compared to the common cold. The symptoms associated with the condition can start within the first day following exposure to the influenza virus, but it may take up to four days for these symptoms to develop. Once the symptoms have presented themselves, it can take up to two weeks, and in some cases even longer, for all the symptoms to clear up and for the influenza virus to be successfully expelled from the body.

Fever is a very common symptom experienced by a patient infected with the influenza virus – this is also one of the very first symptoms associated with the condition. Fortunately, fever is not one of the symptoms that tend to last for the entire course of the infection. In most cases, fever as a symptom of flu will only last for the first three to four days after symptoms start to develop. It should, however, be noted that in some cases fever may last for up to ten days.

How Long Is The Influenza Virus Contagious?

One of the most problematic factors about the influenza virus and flu is the fact that the condition is contagious before and after symptoms are present. A person infected with the virus can spread it to another person through sneezing and coughing. The contagious period of flu starts approximately one day prior to the development of the first symptoms associated with the influenza virus infection. The virus will continue to be contagious for approximately five days after the individual’s symptoms have started. In younger children, however, the virus may continue to be contagious for longer.

The Best Treatment Methods For Flu

In the majority of cases, the treatment plan provided to a patient who has developed flu would primarily target the symptoms they are experiencing. These symptoms can be very unpleasant, which makes it essential for treatment to assist in relieving the symptoms and easing the effect that the condition has on the patient’s overall quality-of-life. In addition to treating the symptoms, antiviral drugs that have been designed especially for the purpose of fighting against the influenza virus should also be used to help the body in fighting against the virus.

Current antiviral drugs for influenza that has been approved by the FDA include oseltamivir, peramivir, and zanamivir. Most of these medications are provided to the patient for around five days, except for Peramivir, which is a once-off drug that is administered to the patient intravenously.

In addition to the use of these medications, several home remedies can also be used to assist with providing a faster relief in the symptoms caused by the influenza virus. Rest and maintaining hydration are two of the most important home remedies for flu. Ensure get you a lot of rest and make sure to drink a lot of water. If you are a smoker, then you should consider giving up smoking – at least until the symptoms have cleared up.

Effective Preventative Methods For Flu

Influenza can spread from an infected person to another person relatively easily. For this reason, it is important to take preventative measures in order to reduce your risk of being infected with the virus and, in turn, developing flu. Prevention methods need to be implemented when you are in the same surroundings as someone who has been infected with the virus. Even when not in the same environment as a person with flu, it is vital for you to ensure you still implement specific preventative methods to help reduce the risk of being infected.

  • It is important to wash your hands frequently. If you touch a spot where particles from a cough or sneeze have touched, then the influenza virus may be present on your hand. If you do not wash your hands before eating food or touching your mouth, then you can become infected.
  • If you have contracted the influenza virus, then disposing of tissues that you used immediately is vital. This will help to prevent you from spreading the virus to those around you.
  • If you have contracted the influenza virus, then remaining in bed and staying in at home can be an effective preventative method for reducing the risk of infecting other people.

Another effective preventative method is to ensure you get an influenza vaccine once a year when flu is common in your local area. This vaccine can help to avoid you from obtaining the influenza virus even when you are in the same room as someone who has been infected.


Flu is a common condition that affects a significant percentage of the population each year. The condition can be treated relatively easily, but the symptoms caused by the influenza virus can be very unpleasant and be disruptive to a patient’s daily life. In some cases, more serious complications may also develop, which may become life-threatening when not attended to promptly. We provided an overview of how long you can expect the fever to last if you develop flu, as well as the symptoms you should recognize, the potential causes of flu, and how you can get rid of the influenza virus quickly.

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