Similarities and Differences between Flu and COVID-19

Similarities and Differences between Flu and COVID-19

Mar 01, 2022

COVID-19 and flu are respiratory infections caused by different viruses. The illnesses affect one’s lungs and breathing and are highly contagious. COVID-19 infection is caused by SARS-CoV-2, also known as severe acute respiratory syndrome coronavirus 2. Flu infection is caused by influenza virus A or influenza B. Both viruses circulate the year, infecting one’s lungs, nose, and throat.

What are The Similarities of COVID-19 and Flu Infections?

How COVID-19 and Flu are Spread

COVID-19 and flu viruses can be spread between people in close contact. They are spread through respiratory droplets or aerosols released when sneezing, talking, or coughing. The droplets then land in the nose or mouth. This happens if you are in close contact within 2 meters with the infected person. One can also inhale small particles that linger in the atmosphere and get infected. The infections can also be spread when one touches a surface with the viruses on it and touches their nose, eyes, or mouth.

COVID-19 and Flu Signs and Symptoms

Both infections have similar symptoms that range from mild to severe. The diseases can also be asymptomatic, making them hard to detect. Therefore, testing of both COVID-19 and flu is required when diagnosing the infections. Visit us at Altus Baytown Emergency Room if you experience some following symptoms.

  • Stuffy or a runny nose
  • You may experience breathing difficulties or shortness of breath
  • Headaches, muscle pains, and body aches
  • Sore throats
  • Coughs
  • Fever
  • Nausea or vomiting, which is more common in children

COVID-19 and Flu Health Complications

If not treated early, both infections can cause severe health issues. Some of these serious conditions include:

  • Acute respiratory distress syndrome
  • Cardiovascular problems such as heart attack or stroke
  • Pneumonia
  • Inflammation in your heart or brain
  • Organ failure such as kidney or respiratory organs failure
  • Worsening of chronic health issues such as diabetes, or heart conditions
  • Death

Mild flu and COVID-19 symptoms can easily be managed at home. However, seek immediate emergency care if the symptoms progress.

COVID-19 and Flu Vaccination

Both COVID-19 and flu infections have approved vaccinations. Millions of people worldwide have already received COVID-19 vaccinations. They have met the required safety, effectiveness, and quality. The vaccinations do protect not only you but also those around you.

WHO recommends flu vaccinations, especially to individuals at a higher risk. They include pregnant women, children, seniors, and people with underlying medical issues.

Differences Between COVID-19 and Flu

Despite COVID-19 and flu being viral infections, they have several differences.


Both COVID-19 and flu infections symptoms timelines differ. COVID-19 symptoms usually manifest after two to 14 days, while flu symptoms will appear from the first to the fourth day of exposure. Visit our emergency room in Baytown, TX, for flu treatment in an ER near you.

COVID-19 and Flu Infections Severity and Spreading

Compared to the flu infection, COVID-19 is more contagious and spreads rather quickly. With COVID-19, one is more likely to experience severe lung injury and a loss of taste and smell. On the other hand, flu infections have a lower mortality rate than COVID-19.

COVID-19 and Flu Treatment

Flu infections can be treated using various antiviral drugs. Whereas COVID-19 infections currently can only be treated using a single antiviral. However, some medications can reduce the severity of COVID-19 symptoms.

In severe cases of COVID-19, you may require supplemental oxygen to help treat respiratory issues that may occur.

How To Avoid COVID-19 and Flu Infections

Follow the following social and health guidelines to protect yourself and your loved ones from COVID-19 and flu infections.

  • Wear a well-fitted mask and be at a distance of two meters or six feet from others
  • When coughing or sneezing, do it on your bent elbow or a disposable tissue
  • Clean and sanitize your hands and surfaces you are frequently in contact with
  • Keep your hands away from your face, nose, eyes, or mouth
  • Stay in well-ventilated spaces and avoid crowded areas

If you suspect you may have contracted COVID-19 or are showing symptoms, visit our emergency room for diagnosis and treatment. Our ER is always ready and prepared to handle all emergency cases and provide the needed care.

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