As you know, many bacteria cause disease. Moreover, these ailments have a number of features that distinguish them from other pathological processes. It is they who make them unique.
Key Features
There are many characteristics of infectious diseases. First of all, it is necessary to highlight such a characteristic feature for them as the possibility of transmission from one person to another. Because of this, they are considered one of the most dangerous for human civilization.
The fact that it was the bacteria that caused the disease was assumed even before the microscope appeared. Then scientists assumed that some ailments are transmitted from person to person through very small, invisible harmful creatures. With the advent of the microscope, it was possible to prove this assumption.
How bacteria cause disease
A lot depends on how the infection got into the body. Many diseases caused by bacteria in humans are manifested by a violation of the activity of that particular organ that is closest to the site of penetration. The fact is that the body has many barriers and protective agents that can suppress / stop almost any harmful agent. For this reason, the respiratory infections caused by bacteria are perhaps the most common. The fact is that many microorganisms are transmitted by air and airborne droplets. As a result, the respiratory system becomes the first in the path of bacteria. Many infections damage the mucous wall of the airways, causing cough, runny nose, pain, sputum production, and many other symptoms. The main ailments that develop in this way include: pneumonia, bronchitis, tracheitis, pharyngitis, laryngitis, rhinitis, tuberculosis and others.
Other bacteria cause disease after entering the bloodstream. Such infectious processes are extremely dangerous, as they often lead to the formation of sepsis. This disease is considered one of the most dangerous among all known to modern medicine. If the patient is not helped in the shortest possible time, then this can end very, very deplorably.
Recently, the number of cases of sexual transmission of infections has significantly increased. Here it is worth mentioning such ailments as chlamydia, vaginitis, salpingoophoritis, salpingitis and many others.
Bacteria cause diseases most often by producing endotoxins and exotoxins, that is, indirectly. The nature of the disease that develops in the future largely depends on how active and stable these harmful substances are.
Treatment difficulties
Some bacteria cause diseases that are very difficult to treat. Against certain ailments of an infectious nature, even the most modern drugs are powerless.
In addition, one more feature of bacterial diseases should be noted . The fact is that over time, infections gain resistance to those antibiotics that are used to kill them. This process is especially fast in those cases when people cease to comply with the recommendations of specialists and arbitrarily change the antibiotic regimen proposed by doctors. In this case, the wrongly used drugs the next time may no longer work.