Question

name the three viral and their symptoms and prevention​

Answer 1

Answer:

Viral disease definition

Viruses are very small infectious agents. They’re made up of a piece of genetic material, such as DNA or RNA, that’s enclosed in a coat of protein.

Viruses invade cells in your body and use components of those cells to help them multiply. This process often damages or destroys infected cells.

A viral disease is any illness or health condition caused by a virus. Read on to learn more about some of the main types of viral diseases:

They aren’t always contagious

Not all viral diseases are contagious. This means they aren’t always spread from person to person. But many of them are. 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.

Respiratory viral diseases

Respiratory viral diseases are contagious and commonly affect the upper or lower parts of your respiratory tract.

Common symptoms of a respiratory viral disease include:

runny or stuffy nose

coughing or sneezing

fever

body aches

Examples

Examples of respiratory diseases include:

flu

common cold

respiratory syncytial virus infection

adenovirus infection

parainfluenza virus infection

severe acute respiratory syndrome (SARS)

Transmission

Respiratory viruses are spread by droplets generated through coughing or sneezing. If someone with a viral illness coughs or sneezes nearby and you inhale these droplets, you may develop the disease.

These viruses can also be spread through contaminated objects, such as doorknobs, tabletops, and personal items. If you touch one of these objects and then touch your nose or eyes, you could develop a disease.

Treatment

Respiratory viral diseases usually heal on their own. But over-the-counter (OTC) medications, including nasal decongestants, cough suppressants, and pain relievers, can help to reduce symptoms.

In addition, Tamiflu, an antiviral drug, is sometimes prescribed if someone is in the very early stages of developing the flu.

Prevention

The best way to avoid respiratory viral diseases is to practice good personal hygiene. Wash your hands often, cover your mouth when you cough or sneeze, and limit your interactions with people who show symptoms of a respiratory condition.

There’s also a vaccine that can help to reduce your risk of getting the seasonal flu.

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