Toxic shock syndrome is a condition caused by bacterial toxins. Symptoms may include fever, rash, skin peeling, and low blood pressure. There may also be symptoms related to the specific underlying infection such as mastitis, osteomyelitis, necrotising fasciitis, or pneumonia. TSS is caused by bacteria of either the Streptococcus pyogenes or Staphylococcus aureus type. Streptococcal toxic shock syndrome is sometimes referred to as toxic shock-like syndrome. The underlying mechanism involves the