Читать книгу A Practical Approach to Special Care in Dentistry - Группа авторов - Страница 184

The HIV is a retrovirus of the lentivirus group. When transmitted to a patient, HIV mainly targets T helper cells (CD4+ cells), which are essential for the immune response. The initial infection is followed by a long period of gradual deterioration of the immune system, which leads to the AIDS phase. It is estimated that more than 37 million individuals worldwide have HIV/AIDS and that its current rate is 1.7 million new cases per year.