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Flu season has arrived already and it’s important to understand the difference between normal flu and coronavirus because the symptoms of both usually overlap.

Flu and COVID-19 are respiratory diseases that are contagious, although caused by different viruses. COVID-19 is the newly found virus caused by a new coronavirus infection (called SARS-CoV-2) and flu is caused by influenza virus infections.

There are some key differences between COVID-19 and Flu

COVID-19 tends to spread more quickly than the flu and in some people causes more severe manifestations. It takes a little time for people to start feeling COVID symptoms and these may remain for more time as compared to the flu.  

Another major distinction is that flu can be cured rapidly with vaccines and medication. Whereas in the case of COVID-19, vaccine shots are helping COVID -19 symptoms to not get worst but complete escape from the virus has not been confirmed yet. Also, it takes time to feel better and the after-effects can last for months. One should avoid being exposed to the virus, as it is the best way to prevent infection. 

Mentioned below are more details on the differences between Flu and COVID.

Signs & Symptoms

Similarities

There can be fluctuating degrees of signs and symptoms for both COVID-19 and Flu ranging from facing no symptoms to serious symptoms.

Most common symptoms of COVID-19 and flu include:

●      Soreness of throat

●      Coughing

●      Shortness of breath or breathing problems

●      Fatigue

●      Fever / chills

●      Stuffy or runny nose

●      Muscle ache

●      Headache

Some people may have vomiting and diarrhea, kids are more likely to experience these symptoms as compared to adults.



Differences

Flu (Viral Fever) & COVID-19

  • Apart from the common symptoms stated above, flu usually causes mild to serious symptoms
  • Flu usually doesn’t disturb your abilities to smell and taste  
  • In certain people, COVID-19 might cause more serious illnesses. 
  • COVID-19 might also cause changes in taste or odour, or loss of taste.

Gestation Period

It means the duration in which symptoms of the infectious disease start showing up after the initial infection.

 Similarities

For both COVID-19 and flu, might take 1 or more days between a person becoming infected and them starting to experience symptoms.

Differences

Flu (Viral Fever) & COVID-19

  • In case of Flu – A person typically develops symptoms anywhere between 1 and 4 days after infection. 
  • In case of Covid – Usually, a person develops symptoms 5 days after getting infected, but symptoms can occur as early as 2 days after infection or as late as 14 days after infection; the time period varies for different people.

For how long can it be Infectious?

Similarities

It is possible for people infected with both COVID-19 and Flu to transmit the virus for at least 1 day before any symptoms arise.

Differences

Flu (Viral Fever) & COVID-19

  • Most people with flu remain infectious for around 1 day before they experience symptoms.
  • Older children and adults with flu tend to be most infectious during their disease’s initial 3-4 days, but many remain infectious for around 7 days
  • Infants and people with compromised immune systems may be infectious for even longer
  • Virus can be transmitted for approximately 2 days of experiencing signs or symptoms and can remain infectious for at least 10 days after signs or symptoms first appear
  • It is likely to remain infectious for at least 10 days after testing positive for COVID-19 even in case of asymptomatic people or even in those who have no symptoms left.

Mode Of Disease Spread & Infection

Similarities

COVID-19 and flu can spread by coming in close contact with the carrier. Both are mainly transmitted by cough, sneeze, or droplets released when the infected person speaks. These droplets may land in nearby people’s mouths or noses and also could be inhaled into the lungs.

Physical contact with people like shaking hands or touching a surface or object having the virus on it, and then touching one’s own mouth, nose, or possibly eyes, can infect a person.

Both viruses can spread in people even before they begin to show symptoms with very mild symptoms or absolutely no symptoms at all.

Differences

Flu (Viral Fever)& COVID-19

  • Generally, flu affects kids more severely
  • Although highly infectious, flu is said to have had lesser super-spreading events as compared to COVID-19.    
  • For some age groups, COVID-19 is more infectious than flu. 
  • COVID-19 has had more super-spreading events than flu, implying that the virus that causes COVID-19 will spread to many individuals quickly and easily and lead to countless spread among individuals as time progresses.

Complications

Similarities

Some complications can be seen both in COVID-19 and the flu, including:

  • Pneumonia
  • Respiratory insufficiency
  • Acute respiratory distress syndrome (i.e. fluid in the lungs)
  • Sepsis
  • Heart complications
  • Multi-organ failure
  • Worsening of chronic medical conditions like lungs, heart, diabetes or nervous system
  • Heart, brain or muscle tissue inflammation
  • Secondary bacterial infections

Differences

Flu (Viral Fever) & COVID-19

  • Most people recover from flu in a few days, mostly within two weeks with very few percentages of the population developing any of the above complications.    
  • Other COVID-19 related complications can include:

  1. Blood clots can be observed in veins and arteries of the lungs, heart, legs or brain
  2. Children’s Multisystem Inflammatory Syndrome

Conclusion 

As we continue to live in these trying times, where specialists around the world are trying to understand the mutants of Covid-19 and the efficacy of vaccines on these mutants, it is highly advised to follow the basic guidelines of social distancing, wearing a mask, and practicing proper hand hygiene even if you are fully vaccinated.

It’s important to understand that every time you fall sick, it might not be because of covid, so instead of panicking it is important to understand similarities and differences between Flu and Covid-19. One can consider getting tested if:

  1. You have symptoms of COVID-19.
  2. You’ve had close contact within 6 feet of an infected person for a total of 15 minutes or more with someone with confirmed COVID-19.
  3. You’ve been asked or referred to getting tested by your healthcare provider

Reference :

https://www.medicalnewstoday.com/articles/coronavirus-vs-flu

https://www.cdc.gov/flu/symptoms/flu-vs-covid19.htm

 

The Arogyada
www.arogyada.in