MRSA is a type of staph bacteria that is resistant to certain antibiotics. It can cause infections that range from minor to life-threatening by entering the body through cuts or open wounds and spreading through direct contact with infected individuals or surfaces. Symptoms depend on the infected area but often appear as boils or swollen, painful skin sores. Treatment may involve draining infections and using specific antibiotics like vancomycin chosen through lab testing. Preventing spread involves good hand hygiene through thorough washing and drying.