Essay On The Origin Of Aids

Essay On The Origin Of Aids-48
HIV is spread by three main routes: sexual contact, significant exposure to infected body fluids or tissues, and from mother to child during pregnancy, delivery, or breastfeeding (known as vertical transmission).In low-income countries, the risk of female-to-male transmission is estimated as 0.38% per act, and of male-to-female transmission as 0.30% per act; the equivalent estimates for high-income countries are 0.04% per act for female-to-male transmission, and 0.08% per act for male-to-female transmission.Our editors will review what you’ve submitted and determine whether to revise the article.

Montagnier and his colleagues identified the virus as a new type of human retrovirus, and they suspected that it was the cause of AIDS.Lentiviruses share many morphological and biological characteristics.Many species of mammals are infected by lentiviruses, which are characteristically responsible for long-duration illnesses with a long incubation period.Another group consists of those who maintain a low or undetectable viral load without anti-retroviral treatment, known as "elite controllers" or "elite suppressors".They represent approximately 1 in 300 infected persons.In the United States more than 1.1 million people are living with HIV/AIDS, and about 44 percent of all new infections are among African Americans.In Asia sharp increases in HIV infection have occurred in China and Indonesia.Preventive treatment involves the mother taking antiretrovirals during pregnancy and delivery, an elective caesarean section, avoiding breastfeeding, and administering antiretroviral drugs to the newborn.If a woman is untreated, two years of breastfeeding results in an HIV/AIDS risk in her baby of about 17%. Due to the increased risk of death without breastfeeding in many areas in the developing world, the World Health Organization recommends either: (1) the mother and baby being treated with antiretroviral medication while breastfeeding being continued (2) the provision of safe formula.Since 1981 about 35 million people have died from HIV infection.In the early 21st century, however, the annual number of new infections began to decrease, and since about 2005 the annual number of AIDS-related deaths globally has also declined.

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