Often referred to as a “superbug,” Methicillin-resistant Staphylococcus aureus, better known as MRSA, is an infectious bacteria that is tougher to treat than most infections.

That’s because it is resistant to a large group of commonly used antibiotics. Though most MRSA infections are not serious, some can be life threatening.

MRSA acquired its resistance because of overuse of antibiotics in the general population. Used when not necessary, antibiotics can cause more dangerous bugs to develop within a population.

Outwardly visible symptoms of MRSA vary, but most appear first as a skin infection or rash, then quickly develop into a more serious skin disorder requiring medical attention. A MRSA carrier is someone who does not have MRSA symptoms but has the bacteria living on their skin or in their nose. You can be a MRSA carrier and not even know it.

MRSA is increasingly showing up in close-proximity community settings, such as schools or sports teams. MRSA is spread by contact, so you could get it by touching another person who has it on the skin or by touching an object that has the bacteria on it.

In the past decade, the number of MRSA infections in the United States has increased significantly. Community acquired MRSA has infected more than 500,000 Americans yearly.

Important prevention techniques include paying careful attention to personal hygiene and washing your hands frequently. Do not share towels or razors with another person, and cover all open wounds with a bandage.

If you suspect that you may have a MRSA infection, it is very important to be checked by a medical professional as soon as possible. Doctors can provide testing and treatment.

• Joanna Hagen is a Family Nurse Practitioner at Snoqualmie Ridge Medical Clinic.