Causes of Respiratory Tract Infection, Upper and Lower Respiratory Infections

The most common cause of a respiratory tract infection is one of over 200 viruses. However, a bacteria or fungus can be its cause as well.

Viruses causing respiratory infections are highly contagious. And they disperse readily via direct contact.

Respiratory tract infections are divided into upper and lower. An upper respiratory tract infection disturb your:

  • ears
  • nose
  • throat
  • larynx
  • trachea
  • sinuses
  • nasal cavity

For the most part, upper respiratory infections are not considered a major health hazard, but are usually bothersome.

Lower respiratory tract infections afflict your:

In general, lower respiratory infections encumber your health more seriously than upper respiratory infections.

The viruses that cause nearly all upper respiratory tract infections are:

Some of these can cause gastroenteritis too.

There are many different types of virus, bacteria or fungus caused upper respiratory infections, including:

Your upper respiratory system is the most frequently infected area of the body. And, on average, a child will experience about six virus caused respiratory infections a year.

The prevalent types of lower respiratory infections are:

Influenza is a systemic disturbance, thus it can infect in both your upper and lower respiratory tracts.

Symptoms of upper and lower respiratory tract infections depend on the type. Yet, you can expect some of these classic symptoms:

Normally, acute respiratory illnesses last from a couple of days to a couple of weeks.

Respiratory infection treatment caused by a virus is all about relieving symptoms. Many reach for OTC decongestants, antihistamines and pain relievers for assistance.

Although viruses primarily cause respiratory infections, antibiotics are erroneously used treat these infections.