Cytomegalovirus (CMV) - is one of the most common virus in nature; it is present in the blood of the majority of mankind, without causing the disease, as the normal state of the immune system
The immune system - how it works?
for it is an insurmountable obstacle. Mankind has not yet learned to deal with this virus, as well as most viral infections.
What is different from other viruses cytomegalovirus
A distinctive feature of the cytomegalovirus is that, once in the human body, which has a normal immune system, it is embedded in the sensitive cells, and it is preserved for a long time there, staying in an inactive state. Sensitivity to cytomegalovirus show, first of all, the cells of the salivary glands. Furthermore, cytomegalovirus may "hide" in the cells of other endocrine glands, the epithelium of the cervix, kidney and elsewhere.
Thus, cytomegalovirus can "sit" in the human body for the rest of life, and never cause illness. But once significantly reduced immunity, cytomegalovirus is activated, destroying the cell nuclei, in which the "hiding", and other intracellular structures. As a result, the cell attracts fluid swells and takes on a characteristic appearance, which is why, and was called "owl eyes". Breeding cytomegalovirus is first inflammation in the salivary glands, and then spreads to the entire body.
Harmful if cytomegalovirus
For the majority of the population is not dangerous cytomegalovirus. If an adult is slightly reduced immunity, the cytomegalovirus infection may start, but it occurs in the form of its local form - inflammation in the salivary glands or other organs. But such a patient poses a risk as a source of infection as CMV can be transmitted by airborne droplets, contact and sexually.
Cytomegalovirus is a special danger to pregnant women because it can pass through the placenta and cause fetal infection in the fetus. This intrauterine infection rarely ends well: the child dies or in the womb or at birth, and if survives, the severe consequences of violations of mental development of hydrocephalus (hydrocephalus brain), microcephaly (underdevelopment of the brain), blindness, deafness and other diseases.
Infection and child during childbirth, if cytomegalovirus present in mucosal cells of the cervix. Newborn babies and seriously ill cytomegalovirus infection due to immaturity of the immune system
Immunity - types and characteristics in children in adults
- They develop a generalized form of the disease with lesions of the internal organs.
Adults also can develop a form of generalized cytomegalovirus infection if they have sharply reduced immunity. Immunodeficiency observed in AIDS, cancer patients receiving treatment, overwhelming the immune system, and in patients undergoing organ transplantation with advanced artificial suppression of the immune system. This group of patients and pregnant women is a compulsory study of cytomegalovirus
Cytomegalovirus - what is its danger?
How to implement the body's immune system reacts to cytomegalovirus
The immune system in most cases passes CMV to the body, allowing him to "hide" in sensitive cells and preserved, but multiply it does not allow it.
In response to the introduction into the body of CMV produces special proteins - immunoglobulin (Ig) of different classes, which are commonly called antibodies
Antibodies - "soldiers' immunity
. Thus, immediately after the introduction of cytomegalovirus immune system produces IgM. The presence in the blood of pregnant women IgM speaks of the danger threatening the fetus, since the introduction of the primary cytomegalovirus can always end up developing an infection that can get through the placenta to the fetus and cause fetal infection. IgM antibodies can not stop this infection. But if a woman's body increases the titer of IgG, this is a good sign - such antibodies will protect the woman and the fetus from infection.
So today, when various kinds of latent infection can complicate pregnancy, obstetricians recommend that women conduct a survey in the process of planning. If the blood of a woman who plans to become a mother, will show up antibodies IgG, then it has nothing to fear - protection against CMV is present.
If no such antibodies means that the body is open to infection, which can infiltrate into it at any time. A primary infection during pregnancy, as already mentioned, is dangerous. Therefore, such women are recommended during pregnancy to avoid visiting public places, and especially less contact with children who are the most likely sources of cytomegalovirus infection.
Immunity - is our main protection against viruses, since virus infection mankind has not learned to fight.