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Difference Between Flu and Bronchitis

Diseases are quite common nowadays and have been since time immemorial. Due to the presence of foreign bodies, humans come in contact with them and ultimately get infected with several illnesses.


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The mode of infection is dependant upon the type of foreign body. Sometimes it is a bacteria, virus, algae, fungi or any other type of microorganism. Flu and Bronchitis are two such diseases.

The former is caused by viruses, whereas the latter is the aftereffect of flu.

Bronchitis is when the bronchus in the lungs becomes inflamed. There are two types of chronic pain: chronic and acute pain. The trachea, small bronchi, and big bronchi get inflamed owing to a variety of factors.

Also known as influenza, the flu is a contagious respiratory infection. Influenza comes in two varieties. Influenza B and influenza A are the two viruses that have been identified.

Flu vs Bronchitis

The difference between flu and bronchitis is that bronchitis has problems such as pneumonia, whereas the flu has complications such as ear infections, sinus infections, and pneumonia which rarely occurs. Flu treatment includes increased fluid intake, bed rest, and symptom-relieving drugs.

Flu vs Bronchitis

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A virus or viral infection causes flu. Influenza A or B is the virus that causes the flu. Flu is contagious for seven to fourteen days once you’ve been afflicted.

Dry coughs are common among flu patients. Ear infections and sinus infections are common side effects of the flu.

Bronchitis is a condition in which the bronchial tubes become inflamed. Bronchitis is a common ailment that can be either chronic or acute.

Bronchitis typically lasts a fraction of the time that flu does. Sputum is produced by those who have bronchitis.

Bronchitis might result in pneumonia as a side effect.

Comparison Table

Parameters of ComparisonFluBronchitis
Type Viral infectionInflammation of bronchus of lungs.
Caused byInfluenza B or influenza A.Acute, chronic
Lasts for7-14 days Shorter duration
Type of coughDry coughs Coughs with sputum
Complication occurredEar infections and sinus infections.Pneumonia

What is Flu?

A virus or viral infection causes flu, which is a form of infection. Influenza B or influenza A are the viruses that cause flu.

Flu can linger anywhere from seven to fourteen days once you’ve been afflicted.

People who have the flu usually have a dry cough. Muscle aches, a stuffy nose, sweating, and a loss of appetite are all possible side effects.

Ear infections and sinus infections are two complications that can occur as a result of the flu.

Infection droplets can be conveyed from one individual to another through self-contact with the nose, mouth, and eyes, as well as sneezing, coughing, and touching things with viruses on them.

Dizziness, headache, weariness, vomiting, nausea, body aches, chills, and fever are all frequent flu symptoms. The fever lasts about a week.

Respiratory symptoms take over after these symptoms have subsided. Sneezing, sore throat, cough (dry cough), and runny nose are all symptoms.


What is Bronchitis?

Bronchitis is a condition in which the bronchus becomes inflamed. Bronchitis is a condition that can be chronic or acute.

Bronchitis normally lasts a fraction of the time that flu does.

Bronchitis patients have coughs that generate phlegm. Coughing while applying pressure to the chest and abdomen muscles can cause them to contract.

In some cases, it can be quite severe.

Bronchitis can lead to pneumonia, which is a serious consequence. Bronchitis can be caused by a variety of things.

It can also be caused by the influenza virus, which causes illness and only lasts a few days.

Dust, breathing fumes, upper respiratory tract illness, older persons, microorganisms such as Mycoplasma Pneumoniae, weakened immune state, and smokers can all cause bronchitis.

Sore throat, nasal blockage, and cough are the most common symptoms of bronchitis. Coughs that produce sputum or are occasionally dry are the most common.

Muscle pain and the common cold are among the other symptoms. Wheezing and other asthma symptoms are common.


Main Differences Between Flu and Bronchitis

  1. Flu is a type of infection caused by a virus or viral infection. On the other hand, when the inflammation of the bronchus occurs, then it is called Bronchitis.
  2. Flu is caused either by influenza B or influenza A. On the other hand, Bronchitis can be chronic, or it can be acute as well.
  3. Once infected with flu, it lasts for around seven to fourteen days. On the other hand, bronchitis usually lasts for a comparatively shorter duration than flu.
  4. The people infected with flu usually have dry coughs. On the other hand, the people infected with bronchitis have coughs that produce sputum.
  5. The complication occurred due to flu are ear infections and sinus infections. On the other hand, the complication caused due to bronchitis is pneumonia.
Difference Between Flu and Bronchitis
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