Flu vs Stomach Bug: Difference and Comparison

Stomach bug comes with vomiting or diarrhea because of infections in the human body. Gastroenteritis is identified clinically, based totally on individual symptoms and symptoms. Determining the precise cause is no longer vital because it does not exchange the management of the scenario. The flu can spread to pneumonia, which may be caused by endemic or next viral contamination.

Key Takeaways

  1. Flu is a respiratory illness caused by influenza viruses that affect the nose, throat, and lungs.
  2. A stomach bug, also known as gastroenteritis, is an infection that causes inflammation of the stomach and intestines.
  3. Flu symptoms include fever, cough, and body aches, while stomach bug symptoms include diarrhea, vomiting, and stomach pain.

Flu vs Stomach Bug

Flu, short for influenza, is a viral infection that primarily affects the respiratory system, is highly contagious, and is caused by the influenza virus. A stomach bug, also known as gastroenteritis, is a common illness that can be caused by a variety of viruses, bacteria, and parasites.

Flu vs Stomach Bug

Flu viruses include four types. The fourth influenza generation forms four to seven generations in the family Orthomyxoviridae. Flu viruses are spread mainly by respiratory drops produced by coughing and sneezing. It can last for nearly one week. Flu is common in children and senior citizens. Children and senior citizens are prescribed to be taken care of.

Infectious diarrhea and swelling in the stomach are known as stomach bugs. Vomiting can be an alarming sign of gastroenteritis. Fever and dehydration may occur in patients. It takes nearly two weeks to be normal. It has no connection to the flu. Bacteria buildup in the body can cause gastroenteritis.

Comparison Table

Parameters of ComparisonFluStomach Bug
Time periodNearly two weeksNearly two days
Advicedrink waterrest
Lots of waterYesNo
VaccinesAvailableNot available
Solid foodYesNo

What is Flu?

Flu could be a disease that’s caused by viruses. Mild to severe fever and runny nose are common symptoms. Cough and fatigue are also some symptoms. These symptoms start in two days and are but four days. The flu can last for about a period.

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Diarrhea and vomiting are possible, especially in children. The flu can regenerate into pneumonia because of a rise within the virus. Flu can also result in serious complications like acute respiratory distress syndrome and meningitis. Asthma and heart syndrome may happen to the person.

Washing hands regularly and shutting the mouth and nose when individual coughs and sneezes reduces infection. Annual immunizations can help protect you from the flu. Influenza viruses, especially IAVs, change rapidly, so flu vaccines are regularly updated to stay up with the spread of the flu.

The vaccines can protect against two strains which are IAV and IBV. Antibody or antigen trials and polymerase chain reaction (PCR) help detect the virus in humans. These tests can detect nucleic acids. Many therapies are sued, and antibiotics are employed in extreme infections. Flu is common, and people are at high risk. Flu is restricted in most healthy people.


What is Stomach Bug?

Gastroenteritis involves both diarrhea and vomiting. A stomach ache can be an initial sign of a stomach bug. Symptoms can be seen in the person within three days. The condition can weaken down if it is not so serious.

Fever, fatigue, headaches, and muscle aches are all bacterial infections. If the stool has blood in it, the infection increases. Bacterial contagions cause severe pain in the abdomen. This may last for several weeks. Children suffering from bugs can last up to eight days, mostly.

Chronic diarrhea is very prevalent in poor countries. Dehydration is the commencement of diarrhea. Rigorous dehydration in children is very prevalent nowadays. Poor skin turgor can only transpire when the person has rigorous dehydration. The symptom of dehydration is eccentric breathing.

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Recurrent infections are common, where malnutrition is a problem. Stable growth and long-term mental retardation may occur in humans after the infection. Guillain-Barré syndrome is visible in very few people. Shiga infection that produces Escherichia coli toxin is also a result of the infection.

Main Differences Between Flu and Stomach Bug

  1. Flu can stay for a week or two, but Stomach bugs can stay mostly for two days.
  2. Flu can go away if the person drinks lots of water, and bugs can go away if the person takes a rest.
  3. Flu can go away if a person gets plenty of sleep, but it does not work in the bug.
  4. Electrolytes do not work in Flu but work in Bugs.
  5. Vaccines are available for the flu but not available for bugs.
  6. Solid food is needed for flu, but avoid solid food in the bug.
Difference Between Flu and Stomach Bug
  1. https://www.sciencedirect.com/science/article/pii/S0022399901002124
  2. https://www.cell.com/fulltext/S0092-8674(16)31252-1

Last Updated : 11 June, 2023

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8 thoughts on “Flu vs Stomach Bug: Difference and Comparison”

  1. It is important to understand the symptoms that can be attributed to the flu and the stomach bug. While both can be very uncomfortable, understanding the different symptoms can help you seek the appropriate treatment.

  2. Severe stomach bugs can lead to chronic diarrhea and dehydration, which can have long-term effects. It is important to understand how to prevent and manage stomach bugs effectively.

  3. Stomach bugs can come in different severities, depending on the virus, bacteria, or parasites that are causing the infection. It is also important to remember that there are other causes for the flu as well. Ensuring a proper diagnosis will ensure a proper treatment.

  4. It is interesting to note the common symptoms between the flu and the stomach bug, such as diarrhea and vomiting. However, it is important to understand how to differentiate between the two illnesses to receive the right treatment.

  5. The fast spread of the flu and stomach bug between individuals presents different risks. While the flu is common to children and senior citizens, poor bacteria control in the body can lead to the stomach bug.

  6. The flu and the stomach bug can both lead to pneumonia and present with fevers, but the treatment can be different. It is important to understand the differences to receive the right care.

  7. The symptoms of the flu can range from mild to severe, and in some cases, it can lead to serious complications. Understanding the different strains and the potential complications is crucial for prevention and treatment.

  8. While both flu and stomach bugs present with similar symptoms, such as diarrhea and vomiting, they originate from different sources. Understanding the source and the differences in symptoms is essential for proper diagnosis and treatment.


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