You will be redirected to the related website.
This information helps us optimize our content and make surfing on our site more convenient for you. In some cases, cookies are also used to make specific information about our products available on websites of other providers. This is why we also work with external service companies which use the information obtained from cookies exclusively for this purpose.
The information obtained from cookies is not used for any further purpose.
You can adjust the settings on your browser so that you are notified whenever a server wants to send you a cookie. You can accept or reject cookies; you can also completely block them. Further information is available in the help function of your browser.
In light of the discussion about the use of Analysetools and complete IP addresses, we wish to state that this website works with Google Analytics and the "_anonymizeIp()" function; consequently, it only processes partial IP addresses so as to rule out identifying information.
You can refuse the use of Google Analytics by clicking on the following link. An opt-out cookie will be set on the computer, which prevents the future collection of your data when visiting this website: Disable Google Analytics.*
During respiration any number of pathogens can be carried into the lungs along with the air supply. Normally, the body′s immune system is able to fight these pathogens and they have no detrimental effects. However, if the immune system is no longer able to combat pathogen invasion owing to a disruption in immune balance, respiratory tract infections (RTIs) can arise. Acute RTIs are common and can affect all age groups, particularly during the winter months. Most RTIs — between 90 – 95% — such as the common cold, sinusitis, otitis, tonsillitis and acute bronchitis are caused by viruses.
Acute respiratory tract infections are generally self-healing but if they are left untreated there is a risk that complications will arise. The nasal cavity/pharynx is generally the starting point of an infection. This is where a common cold (rhinopharyngitis) develops, which is characterised by sore throat, a runny nose and lethargy. Pathogen ascent may then trigger sinusitis or otitis, whereas pathogen descent may lead to tonsillitis or acute bronchitis.
In addition, there is a certain risk of developing a chronic disease such as chronic or recurrent bronchitis. It is therefore important to realise that even respiratory tract infections that appear harmless at first sight should in fact be treated.
Over 90% of cases of respiratory tract infections are caused by viruses