Influenza, or the flu, is a viral infection affecting the respiratory tract. Symptoms of the flu include fever, runny nose, stuffed up nose, fatigue, headache, cough, sore throat, vomiting, diarrhea, and achy muscles and joints. Keep in mind that these are flu-like symptoms. If you have any of these symptoms, it doesn't necessarily mean you're afflicted with influenza. If one suspects influenza, it would be a good idea to visit the doctor. Not only is the flu contagious, but if not treated, it could become severe and even fatal.

Influenza is spread when an infected person sneezes or coughs around other people. Particles are passed through the air where they will infect those with whom they come in contact. If an infected person uses a telephone, the infection can also be passed on to the next person to use the phone. Since the infected person may not know she has influenza, she can touch many items without realizing she has passed the virus along to others.

There's no cure for influenza as of this writing. Those wishing to take every precaution can get a flu shot every year. The elderly, pregnant and very young are especially urged to protect themselves in this manner. It's also recommended that those with compromised immune systems or chronic ailments, such as asthma, get the shot each year.

Infected people can take care not to pass on the virus to others. In addition to covering the mouth and nose when they cough or sneeze, they should frequently wash their hands and do their best not to come in contact with other people. Anyone suffering from influenza is urged to stay home from work or school. Even the busiest employer would much rather an infected person stay home than start a work-place epidemic. To venture outside the home is only inviting a disastrous chain of events. A large number of people can become infected if just one infected person rides a crowded subway or goes to a movie theater.

The best thing one can do if one is suffering from influenza is stay home, drink plenty of fluids and rest. If a doctor's visit is required, a prescription for an anti-viral will no doubt be issued. Alcohol and cigarettes or other tobacco products can only lower one's immunity. An infected person would be well advised to stay away from these products at least until after recovery.

If symptoms persist or the influenza gets worse, it's best to see a doctor. The last thing anyone wants is to become sicker. There's no cure for the flu, but at least we can take measures to prevent spreading the virus.