What is a respiratory infection ?

This system is much more vulnerable to infections than other body parts

RESPIRATORY TRACT INFECTIONS

Respiratory infections are divided into upper respiratory tract infections and lower, separated by Carina. In health, the lower respiratory tract is normally sterile because of an extremely effective defense system. Upper respiratory tract infections are particularly common in the paranasal sinuses and childhood.The Middle ear structures are consistent and may be involved minor viral infections of lower respiratory nasopharynx.The is often compromised by smoking, pollution air, aspiration of airway secretions and chronic lung diseases, including chronic bronchitis and chronic obstructive pulmonary disease. Respiratory infections is defined clinical, radiological, sometimes, as in cases of pneumonia, and appropriate microbiological sampling.

The respiratory system is much more vulnerable to infection than other body parts. This is because it is easier for bacteria or viruses from entering the channel when someone breathes in. respiratory tract infections are more common during the winter. This is probably due to the winter people are more likely to stay in close contact with each other. Children tend to get more respiratory infections such as colds than adults. Because they have not yet developed immunity to many viruses that cause colds.

Respiratory infections are a common cause of the disease. Respiratory infection is most common cold. The respiratory system is a general term used to describe all parts of the body that are involved in helping a person to breathe. health professionals generally make a distinction between:

UPPER RESPIRATORY TRACT INFECTIONS
LOWER RESPIRATORY TRACT INFECTIONS

PATHOPHYSIOLOGY

The transmission of microorganisms responsible for the URI is produced aerosol droplets or direct contact with the hand in hand with infected secretions, including transport as a result of the nostrils or eyes. 7Thus, transmission occurs most often in crowded conditions. Direct invasion of respiratory epithelium results in symptoms compatible with the area (s) in question. sinusitis and acute bronchitis is often preceded by a cold. sinus allergies, anatomical abnormalities like a deviated septum, sinus ostium blockage caused by swelling of the mucosal immune disorders such as hypogammaglobulinemia and infection with human immunodeficiency virus, the abuse of cocaine and predispose to the development of acute sinusitis.

The majority of influenza epidemics, 20 century were caused by viruses, but few have been caused by influenza B. Most of the epidemics is believed to spread from students to their families. Annual influenza epidemics due to the supply of influenza virus mutants that most people have no immunity (antigenic drift). Pandemics, on the other hand, occur when a completely new influenza virus is transmitted to humans from other species, pigs and birds most common (antigenic shift). Persons aged 65 years and the underlying disease are at higher risk than healthy people to death and hospitalization due to worsening of their underlying disease as a result of influence....... read more