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Common examples of contagious viral diseases include the flu, the common cold, HIV, and herpes. Other types of viral diseases spread through other means, such as the bite of an infected insect.
Viral disease. 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. [1] Examples are the common cold, gastroenteritis and pneumonia. [2]
The SARS-CoV-2 virus, a type of coronavirus that causes the disease COVID-19, was first detected in Wuhan City, Hubei Province, China in late 2019. It seems to spread easily and sustainably in the ...
Epstein–Barr virus infectious mononucleosis (Mono) Fever – usually lasting 14 days; often mild. Sore throat – usually severe for 3–5 days, before resolving in the next 7–10 days. Swollen glands – mobile; usually located around the back of the neck (posterior cervical lymph nodes) and sometimes throughout the body.
Some airborne diseases, such as chickenpox, have no targeted treatment. However, medications and other supportive care can help relieve symptoms. Some, such as the flu, can be treated with ...
Examples of common human diseases caused by viruses include the common cold, influenza, chickenpox, and cold sores. Many serious diseases such as rabies, Ebola virus disease, AIDS (HIV), avian influenza, and SARS are caused by viruses. The relative ability of viruses to cause disease is described in terms of virulence.
Measles is one of the most contagious diseases, affecting up to 90% of the people close to a person with the disease. It’s a virus that lives in the mucus of the nose and throat and is spread ...
Phase 1: A virus in animals has caused no known infections in humans. Phase 2: An animal virus has caused infection in humans. Phase 3: There are scattered cases or small clusters of disease in ...