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HIV-AIDS Breakthrough by Female Scientists

Timeline Display Date
1995

During the 1980s, it became increasingly clear that HIV-AIDS did not spread through saliva, but the mechanism was unknown. During the early 1990s a team including Stephen Eisenberg of Synergen, Inc., and Tessie McNeely and Sharon Wahl of the NIDR Laboratory of Immunology discovered the protein, secretory leukocyte protease inhibitor (SLPI), that blocks salivary transmission of HIV. They announced their discovery in early 1995.

Portrait photo of Sharon Wahl.
NIDCR
Sharon Wahl
Edward Hamppand Trench Mouth
Explore an Interactive Timeline of NIDCR's History

Learn about important events, scientific breakthroughs, and publications starting in 1945.

Last Reviewed
May 21, 2025
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