YOU don’t take on an exposed wire under current with wet hands, although we cannot see the current like a virus without special equipment. You can, of course, take the risk, but don't say that nobody warned you.
HIV is a human immunodeficiency virus. It belongs to the Retroviride family, to the Lentivirus species.
The source is a virus carrier or a patient.
The main routes of transmission: sexual, blood transfusion (through blood) , transplacental (through the placenta of the mother is transmitted to the fetus)
When HIV enters the body, it binds to the defenders of our body with one of the populations of lymphocytes. These are immune cells that fight all foreign entering our body. cycle in this cell, the virus leaves the cell and it dies accordingly.
So HIV and AIDS are not the same thing.
HIV in the human body goes through 5 stages:
1) the incubation period (this is the period from the moment of infection until the onset of symptoms of the disease. It lasts from 3 weeks to 1 year.)
2) prodromal period (during this period, the virus actively destroys its cells- target, i.e. our immune cells, thereby suppressing our immunity)
3) latency period (latent period, we can say stage m quiet well-being, i.e. The virus is present in the body, but it does not multiply. This can last from 5 to 10 years.
4) stage of AIDS (lasts on average 1-2 years. At this stage there is: the appearance of stomatitis, candidiasis, precancerous lesions of the oral cavity, constant weight loss, progressive asthenization.)
5) terminal stage or AIDS
It also lasts on average 1-2 years. The appearance of infections: candidiasis, tuberculosis, toxoplasmosis and so on. Malignant tumors develop, in particular, in 90% of cases, Kaposi's sarcoma develops - multiple malignant neoplasms of the skin and mucous membranes.
My book, teacher and common sense says yes. And AIDS is a syndrome that is caused by a virus. And the tautology in the title "Human Immunodeficiency Virus". In the days of Levenguk, it was still possible not to believe in m / o. Why not now? Viruses are as real as we are.