What is meant by viral disease?

What is meant by viral disease?

Viral diseases are extremely widespread infections caused by viruses, a type of microorganism. There are 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).

What is not a viral disease?

The spreading of typhoid involves the contamination of infected individuals or bacteria-contaminated food and water. The symptoms of typhoid involve pain in the stomach, headache, fever, diarrhea, etc. So typhoid is not caused by viruses.

What are the examples of viral diseases?

Examples of exanthematous viral diseases include:

  • measles.
  • rubella.
  • chickenpox/shingles.
  • roseola.
  • smallpox.
  • fifth disease.
  • chikungunya virus infection.

What are some examples of viral diseases?

Examples of diseases that are viral in origin are influenza (swine flu), some types of pneumonia, poliomyelitis, cold sores and shingles, and AIDS (acquired immunodeficiency syndrome). Of course, host cells have several defenses against the viral attacks.

What are three diseases caused by viruses?

The most common diseases caused by viruses include ebola, influenza, yellow fever, human immunodeficiency virus (HIV / AIDS), human papillomavirus (HPV), viral gastroenteritis , varicella , and viral hepatitis , among others. To diseases caused by viruses, they are known as diseases or viral infections.

What is the most common viral disease in the US?

Hepatitis is an inflammation of the liver. The most common types of viral hepatitis in the US are hepatitis A, hepatitis B, and hepatitis C. Hib disease is a serious illness caused by bacteria. Babies and children younger than 5 years old are most at risk for Hib disease, but it can also affect adults with certain medical conditions.

How does a virus cause disease?

Viruses cause disease by invading host cells, then taking over the cell and causing it to create more viruses. The immune system has a variety of ways of detecting that a cell is infected by a virus.