causes of necrotizing fasciitis
Necrotizing fasciitis is most commonly caused by an infection with group A Streptococcus, commonly known as âflesh-eating bacteria.â This is the fastest moving form of the infection. When this infection is caused by other types of bacteria, it typically does not progress as quickly and is not quite as dangerous.everal types of bacteria cause necrotizing fasciitis. The most common and well-known type is group A Streptococcus. However, this is not the only type of bacteria that can cause this infection. Other causes include: 1  aeromonas hydrophila.