Editorial note on viral infections


Daniel Sams*

Viral diseases are awfully widespread infections caused by viruses, a type of microorganism. There are so many types of viruses that cause a wide variety of viral diseases. The most common type of viral disease is the common cold which is caused by a viral infection of the upper respiratory tract (nose and throat).  Viral diseases are infectious and spread from person to person when a virus enters the body and begins to expand. Common ways that viruses expand from person to person Viruses cause familiar infectious diseases such as the normal cold, flu and warts. They also cause severe illness such as HIV/AIDS Ebola and COVID-19. Viruses are like hijackers. They invade living, normal cells and use those cells to expand and produce new viruses like themselves.

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