In 1983, during the earliest days of AIDS research, Deborah Anderson and her colleagues in Boston, Massachusetts hypothesized that AIDS was transmitted by virallyinfected "Trojan horse leukocytes" in semen [1]. This prediction has been supported by numerous studies over the past two decades, although many questions remain concerning HIV infection of the male genital tract. In this issue of AIDS...

The gross anatomy of the accessory glands of the human male genital tract has been known for many centuries but even today there is only scant knowledge about the function of these organs. Reference to the text of Mann (1964) and to books edited by Greep and Astwood (1975) and Brandes (1974) provide a wealth of information about mammalian accessory gland function but serve only to emphasize how...

The activity of αand β-mannosidase (α-MAN and β-MAN) in seminal plasma, spermatozoa and homogenates of reproductive organs has been determined in the drake. The highest specific activities of the examined mannosidases were found in epididymides. The activities of both enzymes decreased significantly during the postbreeding resting season compared to the breeding season. Elution profiles of mult...