Herpesvirus type 2: isolation from seminal vesicle and testes

Area of Science:

• Virology
• Reproductive Medicine
• Pathogen Reservoir Studies

Background:

• Herpes simplex virus type 2 (HSV-2) is a common sexually transmitted infection.
• Previous studies suggest HSV-2 can persist in male reproductive tissues.
• The role of these tissues as a viral reservoir requires further investigation.

Purpose of the Study:

• To investigate the presence of HSV-2 in male reproductive tissues from cadavers.
• To determine if HSV-2 can be cultured from these tissues.
• To assess the potential of reproductive tissues as a reservoir for HSV-2.

Main Methods:

• Examination of reproductive tissues (testes, seminal vesicles) from 10 male cadavers.
• Isolation and culture of herpes simplex virus type 2 (HSV-2).
• Organ explant culture of cadaveric tissues to assess viral release.

Main Results:

• Herpes simplex virus type 2 (HSV-2) was isolated from the testes and/or seminal vesicles in 4 out of 10 cases.
• This marks the first isolation of HSV-2 from human seminal vesicular tissue.
• Successful culturing of HSV-2 from cadaveric reproductive tissue organ explants was achieved, with infectious virus release.

Conclusions:

• Male reproductive tissues can harbor herpes simplex virus type 2 (HSV-2) even in the absence of active or prior infection.
• These tissues may serve as a significant reservoir for HSV-2 transmission.
• Cadaveric reproductive tissue organ cultures provide a novel method for studying HSV-2 persistence and transmission.