Infection refers to the invasion of our body by any disease causing organism, their multiplication and production of toxins. There are several different types of viruses that can infect our body. While many of these viruses only result in a mild infection that often resolves by itself, few of them may cause fatal infections. Further, symptoms of viral infection may not be noted in all. Hence, it becomes important to know about viral infections.
How do viruses infect us?
Viruses enter a normal living cell and then use these cells to multiply in large numbers. While doing this they can kill the cell, alter its functioning or cause it function excessively or minimally. Eventually, such a viral infection can make you sick. These viruses can often attack specific organs in your body, such as the lungs, liver, or even the blood.
Does viral infection always make us ill?
The body’s self-protection system, known as the immune system, can ward off several viral infections. Vaccinations can also help prevent many infections by strengthening the immune system. However, you can get ill when the immune system is not able to handle the infecting virus. These can result in the symptoms of viral infection.
What are the symptoms of viral infection?
Common cold, flu and warts are some of the common viral infections. Such infections are generally associated with symptoms such as fever, cough, chills and cold. The viruses causing these infections can spread from one person to another commonly through the body fluids expelled during a cough or sneeze. Some of the viruses can cause severe conditions such as AIDS, smallpox or Ebola. These infections are associated with a wide variety of symptoms ranging from fever to severe disability. Sharing needles, sexual intercourse with an infected individual or bites from infected animals can also cause the spread of viral infections.