Vaginal tampon model for toxic shock syndrome

Area of Science:

• Microbiology
• Toxicology
• Medical Devices

Background:

• Toxic Shock Syndrome (TSS) is a serious illness primarily associated with Staphylococcus aureus and its toxic shock syndrome toxin 1 (TSST-1).
• Tampon use has been historically linked to TSS outbreaks, suggesting a role for menstrual products in disease pathogenesis.

Purpose of the Study:

• To evaluate the influence of tampon composition, inoculum size, and simulated menses on TSST-1 production and TSS development.
• To establish a reliable rabbit model for simulating human tampon use and studying TSS.

Main Methods:

• A rabbit model was used, involving sequential vaginal insertion of tampons inoculated with TSST-1-positive staphylococci.
• Simulated menses (blood and albumin solution) and saline were used as inoculation media.
• Different tampon materials (carboxymethyl cellulose/polyester foam, cotton, rayon) were tested.

Main Results:

• Carboxymethyl cellulose/polyester foam tampons consistently supported higher bacterial counts and TSST-1 production, leading to TSS-like illness.
• Cotton and rayon tampons were associated with less clinical illness, organism growth, and TSST-1 production.
• Simulated menses enhanced toxin production and illness, even with a reduced bacterial inoculum.

Conclusions:

• Tampon material is a critical factor in the development of TSS, with certain synthetic materials posing a higher risk.
• The rabbit model effectively reproduces menstrual TSS and can be used to assess the safety of menstrual products.
• Other factors beyond tampons may contribute to TSS development, warranting further investigation.