How does Streptococcus pyogenes cause necrotising fascitiis?
It’s just a particularly vicious and aggressive bacteria when it gets under your skin. Strep pyogenes is everywhere, all around you. It’s probable that you brushed against it today at some time or another. You might even have eaten it off a plate, or it came in on an envelope in the mail. But if it doesn’t penetrate the skin and get into soft tissues, it doesn’t do anything. But once it DOES start growing, it is EXTREMELY aggressive, and can require HEROIC treatment. It can also be resistant to every antibiotic in the pharmacy! Fortunately, it is also a very rare condition. I have treated four (4) Necrotizing Fasciitis patients in my life. That’s out of tens of thousands of patients. So, it’s not something you encounter very often. But because the results can be so catastrophic, and can occur in otherwise healthy and normal young people that it gets a lot of bad press. ====EDIT: Joe has given you an excellent technical explanation of the process. If you are a lay person and don’t work
