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The fever which is caused by underlying virus infection is termed as a ‘Viral Fever’.

The fever which is caused by underlying virus infection is termed as a ‘Viral Fever’. It is a contagious disease. There are various varieties of viral infections that can affect humans, such as flu. The viral fever is characterized by a hike in body temperature. This fever is more common in young and elder ones due to their weaker immunity. The patient of viral fever can experience skin rash, body, and headaches. The fever can spread from one person to another by an infected person’s body fluid. Standing close to an infected person while he is coughing, sneezing, or, yawning may cause viral fever.

The main cause of Viral fever is low immunity against microbes. Microbes will infect the body and will make their colonies. To fight the microbes, our white blood cell, called macrophages will produce pyrogen. Then the pyrogen will flow in the bloodstream and will reach the hypothalamus of our brain. This pyrogen is the cause of an increase in the temperature during Viral fever. A common pyrogen is Interleukin-1. The Other Causes of Viral Fever are as Follows

Body temperature in viral fever can range from 99oF to 103oF, depending on the causative virus. The symptoms of viral fever last for a few days.

If a child has a viral fever, then the symptoms are as follows

In the elder ones, the fever is more common. The signs of viral fever in elders are as follows.

When the common signs are noticed, then and there the patient should go to the doctor for the diagnosis process, and the doctor would look at the patient’s symptoms and would tell about the patient’s illness. However, in some cases, the physician or the doctor would prescribe blood tests to find out other conditions like dengue, typhoid, chikungunya, malaria, influenza, etc. A blood test may also be prescribed in situations where the physician or the doctor needs to distinguish between the causative organisms. In a simple sentence, we can say that the physician or the doctor can tell whether the fever is caused by a virus or it is caused by bacteria.

The differences between viral fever and dengue fever are as follows :

Pyrogen is the main property that is responsible for the increase in body temperature. It is produced by the white blood cells of our body. These WBCs are known as macrophages. Pyrogen goes to the hypothalamus of our brain and then our body temperature rises. Pyrogens are made up of lipopolysaccharides. If pyrogens are present in a sufficient amount in our body then, it can cause many inflammatory signs in our body. Some Examples of common pyrogens are as follows: Proinflammatory cytokines, Tumor necrosis factor, Interleukin-1, Interleukin-6.

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