A staph infection is a group of infections caused by staphylococcus, which can result in anything from a minor skin infection to a serious infection that can affect the lungs, heart and blood. Although many staph infections can be treated, there are some that are antibiotic resistant, which are more harmful. Antibiotic resistant staph infections are known as methicillin-resistant Staphylococcus aureus (MRSA). PVL-Staphylococcus aureus, too, is resistant to many common antibiotics, which can also kill off disease-fighting white blood cells and lead to reoccurring skin infections. There are two types of staph infection: skin and soft tissue infections and invasive infections. Skin and soft tissue infections include: Boils Impetigo Cellulitis Skin abscess Folliculitis Wound infections Staphylococcus scaled skin syndrome (SSSS) Invasive infections include: Septic arthritis Osteomyelitis Pneumonia Endocarditis Sepsis Toxic shock syndrome Staph Infection Causes One in three people carry the bacteria that can lead to staph infections harmlessly on their skin. Bacteria of this kind like to stay …