In modern conditions the problem of infectious diseases remains significant, despite the advances in the health care system as a whole. It is fully possible to include such diseases as tuberculosis
Tuberculosis - a full recovery is not guaranteed
Since to date the prevalence of tuberculosis is not reduced. According to statistics on the globe are infected up to one third of the population. The incubation period of tuberculosis a few months, so it is important at the stage of human contact with the agent to take the necessary preventive measures in a timely manner.
When the first signs of the disease
TB is a dangerous infectious disease, with clinical symptoms appear only after the completion of the incubation period. The pathogen is transmitted from an infected person by airborne droplets. From the time when the body gets pathogen (or tubercle bacillus) and the first signs of the disease, it can take from three to twelve weeks, and sometimes for several years. It depends on the state of the immune system
The immune system - how it works?
human.
If the immune forces are weakened, the body copes well with Mycobacterium, ie immune cells destroy the pathogen. In such a situation it can not develop the disease, and the pathogenic bacteria residues are completely removed from the body. If you have a chronic illness, comorbidities, and other aggravating circumstances created favorable conditions for the development of mycobacteria in the body that leads to expanded clinical disease. Throughout the incubation period, there is an active multiplication of the pathogen that has entered the body, so how would the activation of the immune system, and at what rate will accumulate microbial population develops a particular clinical variant of the disease.
A feature of the incubation period can be called the absence of characteristic clinical signs. Only after completion of the first symptoms of tuberculosis
Symptoms of TB - how to recognize the disease
. Often these symptoms resemble symptoms of a cold or a viral disease that makes it difficult to timely diagnosis and treatment.
What can affect the susceptibility to infections
The susceptibility to the effects of the causative agent of tuberculosis is quite high. The most susceptible to this disease the following categories:
- Children under the age of two or three years and adolescents
- seniors (60 years and older)
Have any immunodeficiency state will contribute to the development of the disease. The weakening of the immune system occurs when a person suffers from long-term chronic diseases, as well as on the background of colds or respiratory infections in the use of hormonal drugs
Hormonal treatments - not only contraceptives
and due to other causes (influences lifestyle, alcohol and tobacco).
The duration of the incubation period is determined by how long the agent comes into contact with, and what has been received by the body dose or concentration of mycobacteria. Prolonged exposure to the pathogen in a high concentration of the clinical picture may develop more quickly, respectively, the length of the incubation period decreases.
At the stage of the incubation period, a person becomes a carrier of latent infection itself without knowing it. Well-known methods of laboratory diagnostics become positive when the disease moves in the stage of clinical manifestations. In this respect, the most valuable gain preventive measures that allow many times to reduce the risk of a particular infection.
The incubation period for various forms of TB
It is known that most pathological changes are found in tuberculosis in the lungs (pulmonary TB localization). Consideration should be given the opportunity to extrapulmonary infection. If you compare the incubation period for TB extrapulmonary, it is noted an increase in its duration. This is due to the peculiarities of the immunological response.
Longer incubation period is the reason that the first morphological changes develop primarily in the lungs, lymph nodes, and further spread of the pathogen occurs with the involvement of other organs. At the first meeting of the body with the causative agent of tuberculosis immune system does not have a clue about tuberculosis infection. For this reason, mycobacteria without obstacles penetrate and spread through the body. When the immune response matures, it appears that its formation can not be the same and does not occur simultaneously in different organs.
The most robust immune response generated in pulmonary tuberculosis in comparison with other authorities, as they do not form a strong immune connection, and there is a strong immunological memory. For this reason, in practice, you can meet with a situation where for the bodies, which are much less affected with tuberculosis incubation period exceeds eight weeks or more.
The high tendency of TB infection to early disseminirovaniyu that is spreading through the lymphatic system. In most cases, this situation is typical of childhood, as children develop immunity immediately, is imperfect. Throughout the incubation period of TB immunity missing. Given the existence of this particularly important time to see a doctor at the first sign of trouble when a child or a person older age group begins to complain. Independently identify that person is in the incubation period, it is impossible.
Marina Solovyov