What is pyrogenic toxin?

Pyrogenic toxins are a group of heat-stable bacterial exotoxins produced by several species of Gram-positive cocci, including Staphylococcus aureus, Streptococcus pyogenes, and Streptococcus pneumoniae. These toxins are responsible for inducing fever and other inflammatory responses in the host.

Staphylococcal pyrogenic toxins are divided into five different types- A-E. Type A and B are responsible for toxic shock syndrome, while type C is associated with food poisoning. Type D and E are still under investigation.

Streptococcal pyrogenic toxins are also known as erythrogenic toxins and are responsible for the “scarlet fever” rash seen in patients with Streptococcus pyogenes infections. There are two types of erythrogenic toxins -A and B.

Pyrogenic toxins cause a range of symptoms, including fever, headache, fatigue, muscle aches, vomiting, diarrhea, and rash. In severe cases, these toxins can lead to toxic shock syndrome, a life-threatening condition characterized by low blood pressure, organ failure, and tissue damage.

The diagnosis of pyrogenic toxin-mediated illnesses is based on signs and symptoms, along with laboratory testing of blood or other body fluids for the presence of bacteria or the toxins they produce. Treatment involves the use of antibiotics and supportive care for the affected individual. Prevention measures involve good hygiene practices and food handling and storage.