Study Reveals Origin Of HIV Transmission Between Men

Researchers from the University of California, San Diego have discovered the origin of strains of the human immunodeficiency virus (HIV) among men who have sex with men. The team says the results are important because knowing the mechanisms by which HIV uses human sex to spread is essential to stopping the HIV epidemic. It is known that most HIV infections worldwide result from exposure to the HIV virus in semen, made up of seminal cells and the fluid around these calls, called seminal plasma. HIV virus particles contain RNA and exist in the plasma, while infected seminal cells contain HIV DNA. read more

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