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HIV is commonly transmitted via unprotected sexual activity, blood transfusions, hypodermic needles, and from mother to child. Upon acquisition of the virus, the virus replicates inside and kills T helper cells , which are required for almost all adaptive immune responses .
The human immunodeficiency virus (HIV) [8] [9] [10] is a retrovirus [11] that attacks the immune system.It is a preventable disease. [5] It can be managed with treatment and become a manageable chronic health condition. [5]
HIV-1 is more virulent and more infective than HIV-2, [20] and is the cause of the majority of HIV infections globally. The lower infectivity of HIV-2, compared to HIV-1, implies that fewer of those exposed to HIV-2 will be infected per exposure. Due to its relatively poor capacity for transmission, HIV-2 is largely confined to West Africa. [21]
The genome and proteins of HIV (human immunodeficiency virus) have been the subject of extensive research since the discovery of the virus in 1983. [1] [2] "In the search for the causative agent, it was initially believed that the virus was a form of the Human T-cell leukemia virus (HTLV), which was known at the time to affect the human immune system and cause certain leukemias.
The first identification of HIV-2 occurred in 1985 in Senegal by microbiologist Souleymane Mboup and his collaborators. [28] The first case in the United States was in 1987. [29] The first confirmed case of HIV-2 was a Portuguese man who was treated at the London Hospital for Tropical Diseases and later died in 1987.
Specialty Cookware or Appliances. Gadgets like a mini waffle maker, popcorn maker, ice cream maker, or sandwich press just aren’t necessary and take up more room than they are worth.
GOP Rep. Byron Donalds, a top Trump ally in Congress, seems more vocal about running for Florida governor in 2026 in the race to succeed term-limited Republican Gov. Ron DeSantis.
The College Football Playoff cake is getting close to baked, which means much of the angst and anger of the past few weeks over hypothetical and projected scenarios have proved a waste of time.