Exposed the upper respiratory tract of humans constantly to infection with a number of infectious virus, and this may remain temporarily at a certain percentage of people without showing them any symptoms or signs of harm. The seize one of these viruses favorable opportunity for active breeding in the mucous membrane lining of the respiratory system of the person carrieth her, and then changes physiological and biological ends inflammation objective in one or more of the respiratory tract by type of virus, bringing the person is either patients clinically appearance is satisfactory deals by Type a hidden virus or patients without pathological manifestations, as is the case in most cases of infection by viruses. In both cases, the patient becomes a carrier and a source of spread of HIV infection among persons in contact with him.
Virus:
Majority of documented studies indicate that 80 - 90% of the total throat infections and tonsillitis and pharyngitis caused by viruses and not actually bacteria, and fungi rarely. In many cases, viral infections will pave the way for bacteria to attack the mucous membranes, and cause damage, which helps infectious bacteria to cause topical infections and spread them to other parts of the patient's body. The common viruses and bacteria together to form a condition, it is difficult then select real respiratory reasoned.
And is clinically divided respiratory infections into two parts, the first, to the upper part, and the second, including the bottom, may infect one species of bacteria or viruses from the top to the bottom, and then to any other part of the human body.
Most of the time starts respiratory infections in young children at the top, and ends such as complications, sepsis and meningitis, conjunctivitis, and ear and sinus infections, urinary infections and so on.
Infectious respiratory viruses:
Believe the majority of people that influenza viruses cause most infections and respiratory diseases in humans, but scientific fact confirms the opposite, showing that a virus other infectious cause of at least 80% of the total respiratory diseases, particularly cases of colds widespread all over the world, and more causes, Renault Rhino viruses and Corona Corona that spread throughout the year.
Start manifestations of infection with viruses Renault and Corona are congestion and inflammation primarily attached to the mucosa of the nose, and less in the throat, with a slight increase warmly body, and these symptoms develop after incubation 1 to 3 days to a state cold lasts for several days, do not occur any complications serious side on the body, The body acquires immunity is limited in time, often after initial infection, and can be infected person a second time a new strain one of these viruses after several weeks or months, there is not yet a vaccine to prevent infection with these viruses to the large number of strains that differ emerge from year to year.
The seasonal influenza viruses of types AT lobby H1N1, leads to more serious medical conditions, and include all parts of the respiratory system, and is usually associated with high fever, headache, cough and fatigue in all organs of the body. Was followed by bacterial infections causing pneumonia, and the patient's life is at risk, especially in older individuals and individuals who suffer from HIV or chronic diseases of the lungs. A kind of parainfluenza viruses Parainfluenza that cause medical conditions very similar to the flu but less serious and frequent during the winter months and spring.
The virus Sincicl respiratory Respiratory Syncytial which characteristic severity of infection and frequent spreading among infants (6 weeks to 6 months) and in epidemics in hospitals and kindergartens, and lead infection to infections include all parts of the upper respiratory tract and the lower, it can also get sick virus adults.
Is Sincicl virus spread directly through respiratory contact spray, and infections abound during the winter in most of the Arab countries, and in the summer in the tropics. The disease usually starts cold, then turns to the inflammation in the bronchi and bronchioles of the lungs, shortness of breath occurs, and these symptoms continue for ten days. And lead the first infection with the virus to a limited immune response, increasing gradually frequent exposure of the child to the virus, and is still being sought for the development of an effective vaccine against HIV respiratory Sincicl.
The spread of infection with Adeno through the air, water and food, and move directly from one person to another, and frequently the spread of epidemics among young children and young adults. Attacking strains variable (mutations and genetic) virus Adenauer lymph glands in the neck and tonsils, and lead to acute throat, correlates with coryza, cough and mild fever, and associated symptoms sometimes with conjunctivitis, especially among people who use a swimming pool. And because Adenauer viruses do not die quickly from the impact of chlorine used to clean the pool water. He also spoke several strains of viruses Adenauer infections in the digestive and urinary infants, and some may lead to brain infections and meningitis, and acute pneumonia that may lead to the deaths of people immune Mkpota such as AIDS patients. The infection generally leave one of these patterns viruses acquired immune practically prevent recurrence of the manifestations of the disease, and there is no vaccine to ensure protection against it.
The virus Epstein - Barr Eppenstein-Bar, which is classified within the range of herpes viruses Herpes, also known as human herpes virus type 4. Venture in abundance in all parts of the world, and abound infection among young children at the beginning of early life in developing countries where there overcrowding, poverty and less health services, and virus usually causes symptoms of sore throat light ending acquired immunity continue throughout life. As in communities developed countries, where the standard of living and quality health services, talk infection Epstein - Barr among young adults (16 - 18) in, and spread by kissing, and cause throat infections and lymph glands in the neck, causing disease lymphocytosis and frequent subunit in blood, and the disease known as glandular fever or infectious disease frequent subunit Infectious Mononucleosis. And complications of infection with the virus high proportion of hepatitis with jaundice Jaundice, enlarged spleen, and continue the disease from 1 - 4 weeks. The disease rarely leads to serious complications threaten the patient's life.
It is worth mentioning that there are multiple types of other viral diseases that can be transmitted through the respiratory tract, and some cause onset mild infections of the mucous membranes in the nose, throat and lymph nodes, before it spread to the stomach or the blood and nervous system and the rest of the members of palpation
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