RT Book, Section A1 Murtagh, John A1 Murtagh, Clare SR Print(0) ID 1164451287 T1 T T2 Murtagh’s General Practice Companion Handbook, 7e YR 2019 FD 2019 PB McGraw-Hill Education (Australia) Pty Ltd PP Sydney, Australia SN 9781743767474 LK murtagh.mhmedical.com/content.aspx?aid=1164451287 RD 2024/10/11 AB Usually caused by staphylococcal exotoxin associated with high-absorbency tampon use. Strep. pyogenes can also cause it. The rare syndrome usually begins within 5 days of the onset of the period and may be related to prolonged retention.