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What is the source of human AIDS?
A research team led by Jean-Christophe Plantier of Rouen University published a paper saying: "We found a new human immunodeficiency virus (HIV) in a Cameroonian woman. It is closely related to SIV virus carried by gorillas, but there is no evidence that it is a variant virus of HIV- 1 virus or SIV virus carried by chimpanzees. " Check for AIDS before operation. Scientists first discovered SIV virus in chimpanzees, and also found SIV virus in gorillas in 2006. However, scientists previously thought that HIV originated from SIV in chimpanzees. When humans hunt chimpanzees SIV, they are transmitted to humans and mutate into HIV that can be transmitted from person to person. Plantier and his research team wrote in the paper: "Our research results show that gorillas, like chimpanzees, may be the source of HIV- 1 virus." This paper was published in the latest issue of the British journal Nature. Both HIV- 1 virus and HIV-2 virus can cause AIDS (full name "acquired immunodeficiency syndrome"), and the interpersonal transmission route is the same, but HIV- 1 virus exists all over the world, and HIV-2 virus is common in West Africa. According to reports, this Cameroonian woman is 62 years old. She was found to be infected with this new type of HIV after moving to France from Cameroon in 2004. She has never been in contact with gorillas, but she has had sexual relations with many men since she was widowed. The researchers say that she may have contracted the virus from another person rather than an animal. The researchers think this shows that the virus found in this woman can spread from person to person. They said that this discovery warned the world that "it is necessary to continue to pay close attention to the emergence of new HIV variants, especially in central and western Africa, where all known HIV comes from." A research team composed of French virologists recently announced that they have successfully identified a new HIV- 1 variant, which is very similar to simian immunodeficiency virus (SIV) in genetic composition. Researchers published an article in the latest issue of the British magazine Nature-Medicine, saying that a mutated virus was found in a patient of Cameroonian origin. 1 HIV (HIV- 1) includes three subtypes: M, N and O. At present, most AIDS cases in the world belong to M subtype, and O and N subtypes are relatively few. At first, the researchers thought that this new virus belonged to subtype O, but after cracking the virus genome, it was found to be a brand-new subtype, so it was named subtype P.