HIV is thought to have originated in non-human primates in sub-Saharan Africa and transferred to humans early in the 20th century. The first paper recognizing a pattern of opportunistic infections was published on 4 June 1981.
Two species of HIV infect humans: HIV-1 and HIV-2. Both species of the virus are believed to have originated in West-Central Africa and jumped species (zoonosis) from a non-human primate to humans.
HIV-1 is thought to have originated in southern Cameroon after jumping from wild chimpanzees (Pan troglodytes troglodytes) to humans during the twentieth century. It evolved from a Simian Immunodeficiency Virus (SIVcpz). HIV-2, on the other hand, may have originated from the Sooty Mangabey (Cercocebus atys), an Old World monkey of Guinea-Bissau, Gabon, and Cameroon.
New World Monkeys are an interesting exception to the transmission of HIV. Their immunity is believed to be caused by retrotransposition of the Cyclophilin gene into an intron of TRIM5. The result is fusion gene that provides the owl monkey with resistance to HIV-1 infection.
Human immunodeficiency virus (HIV) is a lentivirus (a member of the retrovirus family) that causes acquired immunodeficiency syndrome (AIDS), a condition in humans in which the immune system begins to fail, leading to life-threatening opportunistic infections.
Infection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells.
The four major routes of transmission are unsafe sex, contaminated needles, breast milk, and transmission from an infected mother to her baby at birth (Vertical transmission).
Screening of blood products for HIV has largely eliminated transmission through blood transfusions or infected blood products in the developed world.
Two species of HIV infect humans: HIV-1 and HIV-2. Both species of the virus are believed to have originated in West-Central Africa and jumped species (zoonosis) from a non-human primate to humans.
HIV-1 is thought to have originated in southern Cameroon after jumping from wild chimpanzees (Pan troglodytes troglodytes) to humans during the twentieth century. It evolved from a Simian Immunodeficiency Virus (SIVcpz). HIV-2, on the other hand, may have originated from the Sooty Mangabey (Cercocebus atys), an Old World monkey of Guinea-Bissau, Gabon, and Cameroon.
New World Monkeys are an interesting exception to the transmission of HIV. Their immunity is believed to be caused by retrotransposition of the Cyclophilin gene into an intron of TRIM5. The result is fusion gene that provides the owl monkey with resistance to HIV-1 infection.
Human immunodeficiency virus (HIV) is a lentivirus (a member of the retrovirus family) that causes acquired immunodeficiency syndrome (AIDS), a condition in humans in which the immune system begins to fail, leading to life-threatening opportunistic infections.
Infection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells.
The four major routes of transmission are unsafe sex, contaminated needles, breast milk, and transmission from an infected mother to her baby at birth (Vertical transmission).
Screening of blood products for HIV has largely eliminated transmission through blood transfusions or infected blood products in the developed world.
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HERPES VIRUS PERMANENT TREATMENT The herpes simplex virus is a contagious virus that can be passed from person to person through direct contact.Children will often contract HSV-1 from early contact with an infected adult. They then carry the virus with them for the rest of their life.Infection with HSV-1 can happen from general interactions such as eating from the same utensils, sharing lip balm, or kissing. The virus spreads more quickly when an infected person is experiencing an outbreak. Additionally,it is possible to get genital herpes from HSV-1 if the individual has had cold sores and performed sexual activities during that time.HSV-2 is contracted through forms of sexual contact with a person who has HSV-2. It is estimated that around 20 percent of sexually active adults within the United States have been infected with HSV-2, according to the American Academy of Dermatology (AAD). ( AAD ) While HSV-2 infections are spread by coming into contact with a herpes sore, the AAD reports that most people get HSV-1 from an infected person who is a symptomatic, or does not have sores.having multiple sex partners being female having another sexually transmitted infection (STI) having a weakened immune system
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