MRSA - Methicillin-Resistant Staphylococcus Aureus

MRSA (Methicillin-Resistant Staphylococcus Aureus) is a type of bacteria that is resistant to many antibiotics, including methicillin and other penicillins. It is a common cause of skin infections, but can also cause more serious infections such as pneumonia, bloodstream infections, and osteomyelitis.

Symptoms of MRSA

  • Skin Infections: Redness, swelling, warmth, and pus or discharge at the site of infection. The skin may also be tender to the touch and have a foul odor.
  • Pneumonia: Cough, fever, chills, shortness of breath, and chest pain.
  • Bloodstream Infections: Fever, chills, fatigue, and low blood pressure.
  • Osteomyelitis: Pain, swelling, and redness in the affected bone. The person may also have a fever and feel unwell.

Causes and Risk Factors of MRSA

MRSA is usually spread through skin-to-skin contact with someone who has the infection, or by touching contaminated surfaces. People at high risk of getting MRSA include:

  • Athletes who participate in contact sports
  • People who have weakened immune systems, such as those with diabetes or HIV/AIDS
  • People who have open wounds or skin conditions, such as eczema or psoriasis
  • Healthcare workers and patients in hospitals and other healthcare facilities
  • People who use injectable drugs or have tattoos or piercings

Treatments for MRSA

Treatment for MRSA usually involves antibiotics, but the type of antibiotic used will depend on the severity and location of the infection. Some common treatments include:

  • Vancomycin: An intravenous antibiotic that is effective against MRSA.
  • Daptomycin: An intravenous antibiotic that is effective against MRSA, including strains that are resistant to vancomycin.
  • Linezolid: An oral or intravenous antibiotic that is effective against MRSA.
  • Surgical Drainage: May be necessary to drain abscesses or other infected areas.
  • Wound Care: Keeping the wound clean and covered, and using topical antibiotics or antiseptics as directed by a healthcare provider.

Prevention of MRSA

To prevent the spread of MRSA, it is essential to practice good hygiene, including:

  • Washing Hands: Frequently with soap and water, especially after touching someone who has an MRSA infection.
  • Covering Wounds: Keeping wounds covered with a bandage or dressing to prevent the spread of bacteria.
  • Avoiding Sharing Personal Items: Such as towels, razors, and athletic equipment.
  • Cleaning and Disinfecting Surfaces: Regularly cleaning and disinfecting surfaces that may be contaminated with MRSA.

Complications of MRSA

If left untreated or not treated properly, MRSA can lead to serious complications, including:

  • Sepsis: A life-threatening condition that occurs when the infection spreads to the bloodstream.
  • Endocarditis: An infection of the heart valves.
  • Osteomyelitis: An infection of the bone.
  • Pneumonia: A serious lung infection that can be life-threatening if not treated promptly.

Article last updated on: 11th April 2025.
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