COVID-19 or Dengue: How to differentiate between Covid and Dengue?

Covid or Dengue

What is COVID?

Covid stands for Coronavirus, also known as COVID-19. It is an infectious disease caused by the SARS-CoV-2 virus. This disease emerged in December 2019. 

Most people who are infected with this virus will experience light to moderate symptoms like respiratory illness and they recover from it without any special treatment. But some patients become seriously ill and need medical treatment. This virus mostly affects those people who are older or those with any kind of underlying health problems such as diabetes, chronic respiratory disease, cardiovascular disease, cancer, or some deadly disease. A person who becomes seriously ill after contracting COVID-19 disease. He can die at any age. 

How Covid – 19 viruses originated?

The coronavirus virus also known as SARS-Cov – 2 may have originated in an animal and when it mutates it could make humans ill. In the past years, many infectious disease epidemics originated in birds, pigs, bats, and other animals. After mutation, it becomes dangerous for humans. The first case of COVID-19 was discovered on December 1, 2019. 

How COVID – 19 viruses spread?

Coronavirus spreads from person to person through droplets and virus particles that are released into the air. It can emit from an infected person’s mouth or nose in tiny droplets when they cough, sneeze, speak, sing, or breathe. These particles range from large droplets to smaller droplets. Larger droplets may take a few seconds to fall to the ground. However, smaller infectious particles can remain in the air and assemble in internal places, where many people gather or where oxygen levels are low. So it is critical to wear a mask, wash your hands and maintain a 1-meter physical distance to prevent the COVID-19 virus from spreading.

What are the symptoms of COVID – 19 virus?

Symptoms may appear in people within 2 to 14 days of infection. A person who has Coronavirus becomes infectious to others for up to 2 days before symptoms appear and it remains infectious to others for 10 to 20 days. It depends on the immune system and the severity of the disease.

Some symptoms may include:

  • Cough
  • Fever or chills
  • Shortness of breath 
  • Muscle or body pain
  • Sore throat
  • Loss of taste or smell
  • Diarrhea
  • Headache
  • Fatigue
  • Nausea or vomiting
  • Congestion or a runny nose

How is Coronavirus treated?

Treatment depends on the severity of the infection in the patient. Some patients have mild symptoms and are advised to take rest at home and take medicine to decrease fever. Depending on the severity, it may require hospitalization and treatment that may include intravenous medications, supplemental oxygen, assisted ventilation, and other appropriate measures.

What is Dengue?

Dengue is a mosquito-borne viral disease that is caused by the bite of a female mosquito belonging to the species Aedes aegypti. These mosquitoes are vectors of the Chikungunya, yellow fever, and Zika viruses. It mainly occurs in the tropical and subtropical regions of the world. There are two kinds of dengue. There are two types of dengue fever: mild and severe. Mild dengue fever causes a high fever and flu-like symptoms while severe dengue fever is also called dengue hemorrhagic fever. It can cause excessive bleeding, sudden falls in blood pressure, and death.  

Almost half of the world’s population, around 4 billion people live in areas with a risk of dengue. Every year, 400 million people are infected with dengue. About 100 million people get ill from infection and 40,000 die from the severity of dengue. 

Current Cases of Dengue in India

In India, about 12 states have been affected by dengue since the start of this year. India recorded 63,280 dengue cases on September 30, 2022. This estimation is done by the National Centre for Vector Borne Diseases Control. Again 20,000 more cases were added in October. On November 2, 2022, Delhi was the first state where cases of dengue became fatal. On October 31, 2022, in Delhi over 1,200 cases of dengue were estimated. This is the highest number of cases in five years. 

What are the symptoms of Dengue?

Many people experience no symptoms or some have symptoms but they may be mistaken for other illnesses such as mild fever. This is because it begins 4 to 10 days after the bite of an infected mosquito. 

Dengue fever causes a high fever of 104 F (40 degrees Celsius). Other signs and symptoms may include:

  • Headache 
  • Muscle, bone, or joint pain
  • Nausea
  • Vomiting
  • Pain behind the eyes
  • Swollen glands
  • Rash 

Most people recover in a week or so. In some cases when symptoms are severe they can become life-threatening. This is also known as severe dengue or shock syndrome. 

Treatment and Prevention

Dengue requires special treatment, and your doctor can treat the symptoms. It can only be prevented by avoiding mosquito bites and better sanitation and cleanliness around your areas.


Both Covid and Dengue are diseases but both are caused by viruses. Covid is caused by SARS-CoV – 2 while dengue is caused by the bite of a female mosquito. Covid is a communicable disease but dengue is not a communicable disease. Symptoms in both cases are different. Covid is spread from person to person but Dengue cannot be spread from person to person. Both diseases have mild to severe symptoms. Covid-19 mainly affects your respiratory system while dengue affects your blood platelets. Treatment varies from person to person and their health conditions. Prevention is better than cure. To prevent these diseases, it is better to lead a healthy lifestyle and take proper care. 

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