AIDS, also known as Acquired Immune Deficiency Syndrome (AIDS), human immunodeficiency virus (HIV) infection caused by infectious diseases mainly through sexual behavior, blood contact or mother to child contact transmission. After HIV, the immune function of the human body is suppressed, which can easily cause viral infection and tumors. After human infection with HIV, it can cause damage to T lymphocytes, leading to persistent immune deficiency, multiple organ infections, and rare malignant tumors, ultimately leading to death.
The outer lipoproteins of AIDS virus (HIV) are embedded in gp120 and gp41 glycoproteins. The 120CD glycoprotein on the surface of gp lymphocytes is hydrophilic and can bind specifically to it; GP41 mediates the fusion of viral envelope and host cell membrane. HIV can selectively invade CD4+lymphocytes after reaching the bloodstream through skin mucosal damage or blood.
After HIV invades CD4+lymphocytes, it synthesizes DNA under the action of viral reverse transcriptase, integrating the virus into the chromosomes of the host cell. DNA cells can replicate and form complete viral bodies to release cells, leading to cell death, infection with new cells, or potential infection, and entering offspring cells as the cells divide.
In the early stages of infection, HIV replicates extensively, resulting in viremia and capsid antigen p. Clinical manifestations of acute HIV infection are characterized by a large amount of replication within HIV cells, leading to damage and death of CD4+lymphocytes, and a significant decrease in CD4+T cells. However, under the immune action of the body, CD8+CTL is activated, killing HIV infected cells while producing anti HIV antibodies, rapidly clearing viremia, and increasing the number of CD4+lymphocytes.
Can kissing infect AIDS?
Can saliva spread AIDS? Generally speaking, kissing will not infect AIDS. HIV exists in the blood, semen, vaginal secretions, tears, urine, milk and cerebrospinal fluid of infected persons. The content in saliva is very low and will not cause human infection with the virus. It has been calculated that under normal circumstances (there is no massive bleeding in the mouth), it takes only two gallons (7) of saliva to achieve the effect of AIDS infection. 5 liters) of saliva to enter the other person's body. So far, the scientific community has not found any cases of infection solely through kissing.
The treatment of AIDS includes four main aspects:
General supportive therapy: including physical and mental rest and nutritional supply.