For HIV to be transmitted from one person to another, four conditions need to be met. If any one of these conditions are not met, HIV cannot be passed on. HIV may be infectious in five body fluids: blood, semen, secretions in the vagina, secretions in the rectum, and breast milk.
HIV stands for human immunodeficiency virus. It is the virus that causes AIDS. When a person is infected with HIV, the virus enters the body and then resides and multiplies primarily in the white blood cells—the immune cells that normally protect us from disease.
HIV The human immunodeficiency virus HIV can be transmitted from one person to another via blood, semen, vaginal and cervical discharge and breast milk. This means an adult can catch the virus during unprotected sex vaginal or anal intercourse involving contact with the partner's mucosa or through blood for instance when sharing needles in connection with drug use. The virus may also pass from the mother to the foetus during pregnancy.
Myths persist about how HIV is transmitted. This section provides the facts about HIV risk from different types of sex, injection drug use, and other activities. You can get or transmit HIV only through specific activities.
You can only get HIV by coming into direct contact with certain body fluids from a person with HIV who has a detectable viral load. These fluids are:. For transmission to occur, the HIV in these fluids must get into the bloodstream of an HIV-negative person through a mucous membrane found in the rectum, vagina, mouth, or tip of the penis ; open cuts or sores; or by direct injection.
HIV stands for human immunodeficiency virus. HIV is a retrovirus that infects cells of the human immune system mainly CD4-positive T-cells and macrophages—key components of the cellular immune system and destroys or impairs their function. Infection with this virus results in the progressive depletion of the immune system, leading to immunodeficiency.
Mucosal sites represent the primary routes of HIV transmission, yet the oral mucosa appears uniquely resistant to HIV-1 infection. Since the oral cavity is not conducive to either infection or transmission of HIV, characterizing the responsible resistance factors, particularly components of innate immunity, and their mechanisms of action may identify new opportunities for interference with viral acquisition at other mucosal sites. Although many of the innate immune factors described to date exhibit both antibacterial and antiviral activities, molecules that inhibit HIV-1 are largely HIV-1 specific.
HIV infects humans and causes damage by taking over cells in the immune system—the part of the body that usually works to fight off germs, bacteria and disease. When that happens, the body may not be able to fight off certain types of illnesses or cancers. If the infection is not detected and treated, the immune system gradually weakens and AIDS develops.
Don't miss out! Create your free JWatch. Although the saliva of HIV-infected persons is known to contain small quantities of the virus, kissing is usually discounted as an important means of HIV. Although the saliva of HIV-infected persons is known to contain small quantities of the virus, kissing is usually discounted as an important means of HIV transmission.