A respiratory tract infection is any infection with the sinuses, throat, airways or lungs. Via cloture . caused by some sort of virus.

Respiratory tract infections (RTIs) are believed to be several reasons why people visit their DOCTOR or pharmacist. The most widespread respiratory tract infection could be the common cold.

Doctors generally make a distinction between:

infections with the upper respiratory tract, which affect the nose, sinuses and throat
infections of the lower respiratory system, which affect the airways and lungs

Children tend to obtain additional upper RTIs than adults, because they've already not yet increased immunity (resistance) to your many viruses that will cause colds.

This site:

explains how RTIs distribute
links to detailed information on the common upper and lower RTIs
provides suggestions about caring for your symptoms in your house and when it's best to see your DOCTOR

How respiratory bacterial infections spread

RTIs can spread in several ways. If you come with an infection say for example cold, tiny droplets with fluid containing that cold virus are launched into the air whenever people sneeze, cough or speak. If these are typically breathed in by some other person, they may additionally become infected.

Infections can also be spread through direct and indirect get hold of. For example, if you have a cold and you simply touch your nostrils or eyes before touching another individual, you may pass the virus on to these.
Upper respiratory system infections

Common upper respiratory system infections include:

the common cold
tonsillitis (infection with the tonsils and tissues in the rear of the throat)
sinusitis (infection in the sinuses)
laryngitis (infection in the larynx, or voicebox)
influenza (flu)

A cough is the commonest symptom of a great upper RTI. Many other symptoms include headaches, a stuffy and runny nose, tender throat, sneezing together with muscle aches.
Lower respiratory tract infections

Common reduced RTIs include:

influenza (this can affect either the top or lower respiratory tract)
bronchitis (infection in the airways)
pneumonia (infection with the lungs)
bronchiolitis (contamination of the airways that affects babies and children newer than two)
tuberculosis (persistent infection of the lungs)

The main symptom of an lower RTI is usually a cough, although it is usually more severe and you may bring up phlegm and mucus. Other possible symptoms undoubtedly are a tight feeling inside your chest, increased rate of breathing, breathlessness and wheezing.
Caring for your symptoms at property

Most RTIs will pass without the need for treatment therefore you usually won't need to see your DOCTOR. You can handle your symptoms at home by taking over-the-counter painkillers, drinking plenty of fluids and getting some shut-eye.
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Antibiotics are not necessarily usually recommended with regard to treating RTIs, because the majority are not caused as a result of bacteria.

The symptoms of upper RTI constantly pass within one to two weeks.
When it is best to see your GP

It is recommended that you really visit your GP if:

your symptoms suggest that you will find pneumonia, for example if you're coughing up soft mucus and phlegm
you feel very unwell
you have a pre-existing heart, lung, hardworking liver or kidney condition
you have a disorder that affects ones nervous system, like multiple sclerosis
you have cystic fibrosis