Differences Covid 19 vs Influenza Virus

This Differences Covid 19 vs Influenza page is intended solely to inform our clients and online visitors about coronavirus COvid-19. All facts are from reliable sources like WHO, CDC and respective Government Health Agencies. Readers can either read through the facts which we summarized in this page or go direct to source through the link listed at the bottom of this page.

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With the start of cold and flu season coinciding with the COVID-19 pandemic it can be confusing to determine what symptoms relate to which illness. Colds, flu-like illnesses and COVID-19 share many symptoms. These include fever, which tends to relate more to the flu or COVID-19 and merits contacting your primary care provider.

picture of Covid-19 Virus, coronavirus pictures, image of covid 19 virus

Image by CDC

This illustration, created at the Centers for Disease Control and Prevention (CDC), reveals ultrastructural morphology exhibited by coronaviruses. Note the spikes that adorn the outer surface of the virus, which impart the look of a corona surrounding the virion, when viewed electron microscopically. A novel coronavirus, named Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2), was identified as the cause of an outbreak of respiratory illness first detected in Wuhan, China in 2019. The illness caused by this virus has been named coronavirus disease 2019 (COVID-19).

picture of flu Virus, influenza pictures, image of influenza virus

Image by CDC

These images provide a 3D graphical representation of the biology and structure of a generic influenza virus, and are not specific to the 2009 H1N1 virus. Available for download in 72 dpi.

What are the Differences Covid 19 vs Influenza? Influenza (Flu) and COVID-19 are both contagious respiratory illnesses, but they are caused by different viruses. COVID-19 is caused by infection with a new coronavirus (called SARS-CoV-2), and flu is caused by infection with influenza viruses.

COVID-19 seems to spread more easily than flu and causes more serious illnesses in some people. It can also take longer before people show symptoms and people can be contagious for longer. More information about differences between flu and COVID-19 is available in the different sections below.

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, and testing may be needed to help confirm a diagnosis.

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Covid-19 & Flu Similarities

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

Differences Covid 19 vs Influenza

Flu (Influenza)

Flu viruses can cause mild to severe illness, including common signs and symptoms listed above.

People who have flu often feel some or all of these symptoms:

fever* or feeling feverish/chills
cough
sore throat
runny or stuffy nose
muscle or body aches
headaches
fatigue (tiredness)
some people may have vomiting and diarrhea, though this is more common in children than adults.

*It’s important to note that not everyone with flu will have a fever.

COVID-19

COVID-19 seems to cause more serious illnesses in some people. Other signs and symptoms of COVID-19, different from flu, may include change in or loss of taste or smell.

People with COVID-19 have had a wide range of symptoms reported – ranging from mild symptoms to severe illness. Symptoms may appear 2-14 days after exposure to the virus. People with these symptoms may have COVID-19:

Fever or chills
Cough
Shortness of breath or difficulty breathing
Fatigue
Muscle or body aches
Headache
New loss of taste or smell
Sore throat
Congestion or runny nose
Nausea or vomiting
Diarrhea

This list does not include all possible symptoms.

References

1) CDC What is the difference between Influenza (Flu) and COVID-19?

2) Samaritan Health Services ; Determining If You Have a Cold, Flu or COVID-19.

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