COVID 19 vs. Flu

COVID-19 vs. Flu

Because some of the symptoms of flu and COVID-19 are similar, it may be hard to tell the difference between them based on symptoms alone. While more is learned every day, there is still a lot that is unknown about COVID-19 and the virus that causes it. Testing may be needed to help confirm a diagnosis and course of treatment but as flu season approaches, people should know the signs of the flu versus COVID-19. This blog compiles the comparisons between COVID-19 and flu, given the best available information to date by the CDC.


Both COVID-19 and flu can have varying degrees of signs and symptoms, ranging from no symptoms (asymptomatic) to severe symptoms. Common symptoms that COVID-19 and flu share include:

  • Fever or feeling feverish/chills
  • Cough
  • Shortness of breath or difficulty breathing
  • Fatigue (tiredness)
  • Sore throat
  • Runny or stuffy nose
  • Muscle pain or body aches
  • Headache
  • Some people may have vomiting and diarrhea, though this is more common in children than adults


Flu viruses can cause mild to severe illness, including common signs and symptoms listed above. Other signs and symptoms of COVID-19, different from flu, may include a change in or loss of taste or smell. 

For both COVID-19 and flu, 1 or more days can pass between a person becoming infected and when they start to experience illness symptoms. If a person has COVID-19, it could take them longer to develop symptoms than if they had flu. Typically, a person with the flu develops symptoms anywhere from 1 to 4 days after infection. People at high risk of complications or who have been hospitalized for COVID-19 or flu should receive supportive medical care to help relieve symptoms and complications.

Experts say that this year’s flu season may be the worst one in recent history as it aligns with an upward trend in COVID-19 cases. If you are in need of medical imaging during the crisis, it is recommended by the CDC that you receive a flu shot and practice social distancing. 

To book a scan, visit us at Medmo helps people schedule radiology imaging tests – such as MRI, CT scans, PET, and more – at nearby accredited centers and identify the payment solution that works best for them. 


Most recent posts

Medical Imaging During COVID-19

Read more

How to Stay Safe from COVID-19 During Imaging Scans

These are a few of the new standard practices imaging centers have taken: Centers operate with modified schedules to maximize social distancing. Practices limit the number of patients in any facility at a given time to lessen the possibility that patients will come into close contact with one another. Waiting areas for patients with symptoms of illness are isolated from other patients and regularly disinfected. Machines and imaging technologies are thoroughly cleaned between each patient visit. Staff are required to wear masks and other personal protective equipment (PPE).
Read more

COVID-19 vs. Flu

Read more