Flu and COVID-19 are two of the infectious diseases caused by the coronavirus caused by the current pandemic. While the symptoms of COVID-19 and may look similar but different viruses can cause the two illnesses.

COVID-19 Similarities and flu


  • Both cause fever, cough, weariness and tiredness or congestion; vomiting and diarrhea sometimes. With more information on the disease, the full list of symptoms of COVID-19 continues to evolve.
  • In rare cases it may be mild or serious, even fatal.
  • It may lead to pneumonia.


  • Both can spread by droplets in the air, from coughing , sneezing or conversation, from person to person.
  • An eventual difference: COVID-19 could spread via aeroplane (see Differences below).
  • Both can be spread several days before symptoms appear by an infected person.


  • Both viruses can not be treated with antibiotics that are bacterial.
  • Both symptoms, like fever reduction, are treated. Serious cases such as mechanical ventilation can require hospitalization and support.


  • Both can be prevented through frequent, thorough washing of hands, coughing in your elbow, staying at home if ill and restricting contact with infected people. Physical distancing in communities may limit the spread of COVID-19.

COVID-19 and Flu Differences

COVID-19: The novel coronavirus 2019, which is now known as the Severe Active Coronavirus II or SARS-CoV-2 was caused by one virus.

Flu: Caused by several influenza virus types and strains.Transmission Transmission

Whilst both influenza and COVID-19 can be transmitted similarly, the difference can also be:

COVID-19 can also be propagated by air, meaning that tiny droplets that are left in the air can cause disease in other people even after the patient is no longer near.

Medicines for antivirals

COVID-19: Currently, antiviral drugs and other therapies are being tested for the symptoms.

Flu: Antiviral medicines can treat symptoms and can shorten the length of the disease sometimes.


COVID-19: There is currently no vaccine available, but development and testing are underway.

Flu: A vaccine has been developed to prevent or reduce the seriousness of influenza in some of the most dangerous types.


COVID-19: After the severe COVID-19 case a permanent damage of the lung , heart, kidney , brain, and other organ may be caused.

Flu: complications of influenza may include cardiovascular inflammation, brain (encephalitis, myositis) or muscle tissue inflammations, multi-organ failure. flu may be influenza-complications.


COVID-19: In late 2019 China first appeared, and in January 2020 there was the initial confirmed case.

Around 12,291,645 cases worldwide have been confirmed. As of July 10, 2020, there were 3,118,168 U.S. cases.

Flu: Every year 1 billion people worldwide have influenza from the world health organisation.

The CDC is estimating 39 to 56 million flu case studies in the U.S. for Oct. 1, 2019–Apr. 4 , 2020. (The CDC does not know the exact number because influenza in most parts of the USA is not a reportable disease.)


COVID-19: Around 555,486 deaths worldwide have been reported. In the United States as of 10 July 2020, 133,291 persons died of COVID-19.
Flu: The WHO estimates that every year from around the world 290,000 to 65,000 people are dead from influenza.

  • The CDC estimates in the USA that 24,000 to 62,000 people were killed by influenza from Oct. 1 , 2019 to Apr. 4 , 2020, respectively. (The CDC does not know the exact number because influenza in most parts of the USA is not a reportable disease.)
  • The situation of COVID-19 is fast changing. Since a new virus causes this condition, people have no immunity and a vaccine can last for several months.
  • Physicians and scientists are working to estimate the COVID-19 mortality rate, but currently considerably more than most flu strains are estimated.

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