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Aug 21, 2018 · A viral disease is any condition that’s caused by a virus. There are several types of viral disease, depending on the underlying virus. We’ll go over some of the main types, including how...
A viral disease (or viral infection) occurs when an organism's body is invaded by pathogenic viruses, and infectious virus particles (virions) attach to and enter susceptible cells. Examples are the common cold, gastroenteritis and pneumonia.
TypeFamilyTransmissionDiseasesdroplet contact fecal-oral venereal ...gastroenteritis keratoconjunctivitis ...fecal-oral respiratory droplet contactHand, foot and mouth disease pleurodynia ...vertical transmission bodily fluidsinfectious mononucleosis Cytomegalic ...salivainfectious mononucleosis Burkitt's ...Viral diseases are mainly caused when a virus enters the human body and uses the host machinery to reproduce. If the body’s immune system fails to fight against viruses, it multiplies and spreads to other cells causing infections.
Nov 23, 2022 · Viral infections are illnesses you get from tiny organisms that use your cells to make more copies of themselves (viruses). Viral infections commonly cause respiratory and digestive illnesses, but viruses can also infect most other parts of your body.
Feb 18, 2022 · Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful. But under certain conditions, some organisms may cause disease. Some infectious diseases can be passed from person to person.
DNA viruses include herpesviruses. RNA viruses include SARS-CoV2, which causes COVID-19. RNA viruses also include retroviruses, such as HIV (human immunodeficiency virus).
Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected with the virus will experience mild to moderate respiratory illness and recover without requiring special treatment. However, some will become seriously ill and require medical attention.
