Which of the following statements regarding methicillin-resistant staphylococcus aureus is correct

MRSA is a type of bacteria that's resistant to several widely used antibiotics. This means infections with MRSA can be harder to treat than other bacterial infections.

The full name of MRSA is methicillin-resistant Staphylococcus aureus. You might have heard it called a "superbug".

MRSA infections mainly affect people who are staying in hospital. They can be serious, but can usually be treated with antibiotics that work against MRSA.

MRSA lives harmlessly on the skin of around 1 in 30 people, usually in the nose, armpits, groin or buttocks. This is known as "colonisation" or "carrying" MRSA.

You can get MRSA on your skin by:

  • touching someone who has it
  • sharing things like towels, sheets and clothes with someone who has MRSA on their skin
  • touching surfaces or objects that have MRSA on them

Getting MRSA on your skin will not make you ill, and it may go away in a few hours, days, weeks or months without you noticing. But it could cause an infection if it gets deeper into your body.

People staying in hospital are most at risk of this happening because:

  • they often have a way for the bacteria to get into their body, such as a wound, burn, feeding tube, drip into a vein, or urinary catheter
  • they may have other serious health problems that mean their body is less able to fight off the bacteria
  • they're in close contact with a large number of people, so the bacteria can spread more easily

Healthy people, including children and pregnant women, are not usually at risk of MRSA infections.

Having MRSA on your skin does not cause any symptoms and does not make you ill.

You will not usually know if you have it unless you have a screening test before going into hospital.

If MRSA gets deeper into your skin, it can cause:

  • swelling
  • warmth
  • pain
  • pus
  • redness, but this may be less visible on darker skin

If it gets further into your body, it can also cause:

  • a high temperature
  • chills
  • aches and pains
  • dizziness
  • confusion

Tell a member of staff if you get these symptoms while in hospital.

Call a GP or NHS 111 if you get these symptoms outside of hospital.

If you need to go into hospital and it's likely you'll be staying overnight, you may have a simple screening test to check your skin for MRSA before you're admitted.

This is normally done at a pre-admission clinic or a GP surgery. A nurse will run a cotton bud (swab) over your skin so it can be checked for MRSA.

Swabs may be taken from several places, such as your nose, throat, armpits, groin or any damaged skin. This is painless and only takes a few seconds.

The results will be available within a few days.

If you're not carrying MRSA, it's unlikely you'll be contacted about the result and you should follow the instructions from the hospital.

If you're carrying MRSA, you'll be told by the hospital or a GP.

You may need treatment to remove the bacteria to reduce your risk of getting an infection or spreading the bacteria.

If screening finds MRSA on your skin, you may need treatment to remove it. This is known as decolonisation.

This usually involves:

  • applying antibacterial cream inside your nose 3 times a day for 5 days
  • washing with an antibacterial shampoo every day for 5 days
  • changing your towel, clothes and bedding every day during treatment – the laundry should be washed separately from other people's and at a high temperature

Treatment is normally done at home, but may be started after going into hospital if you need to be admitted quickly.

Treatment for an MRSA infection

If you get an MRSA infection, you'll usually be treated with antibiotics that work against MRSA.

These may be taken as tablets or given as injections. Treatment can last a few days to a few weeks.

During treatment, you may need to stay in your own room or in a ward with other people who have an MRSA infection to help stop it spreading.

You can normally still have visitors, but it's important they take precautions to prevent MRSA spreading.

If you're staying in hospital, there are some simple things you can do to reduce your risk of getting or spreading MRSA.

You should:

  • wash your hands often (hand wipes and alcohol hand gel are also effective) – especially before and after eating and after going to the toilet
  • follow the advice you're given about wound care and looking after devices that could lead to infection (such as urinary catheters or drips)
  • report any unclean facilities to staff – do not be afraid to talk to staff if you're concerned about hygiene

If you're visiting someone in hospital, clean your hands before and after entering the ward and before touching the person. Gel or wipes are often placed by patients' beds and at the entrance to wards.

It's also a good idea to put a dressing over any breaks in your skin, such as sores or cuts, to stop MRSA getting into your body.

Get more advice about visiting someone in hospital

This video explains how MRSA is caught, what happens when you have it and how to prevent infection.

Page last reviewed: 24 March 2020
Next review due: 24 March 2023

In the community, contact your doctor if you think you have an infection. Early treatment is very important.

  • Wash your hands often, and always after changing the bandage or touching the infection. Use soap and water, or use an alcohol-based hand sanitizer.
  • Do not treat the infection yourself, and do not pick or pop the sore.
  • Cover the infection with dry bandages.
  • Do not share personal items such as towels or razors.
  • Wipe down non-washable equipment with an antibacterial solution, especially before being used by another person.
  • Clean surfaces (counter tops, door knobs) with a standard disinfectant on a regular basis.
  • Wash sheets, towels, and clothes with water and laundry detergent. Use a dryer to dry the items completely.
  • If prescribed antibiotics, take all of the medicine as prescribed by your medical health professional. Finish your antibiotics as instructed, even if you feel better. If your healthcare professional tells you to stop taking antibiotics, return the unused medicine to your pharmacy.
  • Do not share antibiotics with anyone, do not use leftover antibiotics, and do not use antibiotics that were prescribed to another person.

The prevention of MRSA infections in health care is based upon standard infection control precautions, which include routine practices, and contact precautions as required for all antibiotic-resistant organisms. Steps include, but are not limited to:

Source Control

Contact precautions should be used with patients with known or suspected infections. It is not necessary to wait for testing to confirm a diagnosis. Use contact precautions (e.g., procedures to prevent droplet or aerosols). Post signs at the entrance to patient area. Single patient rooms may be used with designated toilets and sinks. Separating patients by 2 metres may also be used when a respiratory infection is present.

Hand Hygiene

Hand hygiene can be performed with an alcohol-based hand rub or with soap and water. Alcohol-based hand rub is used at the point of care in healthcare settings when hands are not visibly soiled. If hands are visibly soiled, wash with soap and water.

Gloving

Wear gloves when touching blood, body fluids and contaminated items. Remove gloves between patient contacts and clean hands immediately.

Masking

Wear a mask and eye protection, or face shields, or masks with a visor attachment during procedures that are likely to generate splashes or droplets of respiratory secretions, blood, or body fluids.

Gowning

Long-sleeved cuffed gowns are not routine, but may be needed in specific situations. Follow your organization’s policies.

Patient Care Equipment

Appropriate cleaning, disinfection and sterilization of patient care equipment and rooms are important in limiting the transmission of organisms. Equipment may be dedicated to a single patient when possible. Surfaces that are likely to be touched or used should be cleaned and disinfected more frequently (e.g., bedrails, tables, call bells, door knobs, bathroom facilities, etc.).

Education of Patient, Families and Visitors

All people involved should be educated about the importance of the precautions being used to help prevent the transmission of the disease. Hand hygiene is particularly important.

Handling of Laundry

In healthcare settings, while care should be taken when handling soiled linen, special handling of linen from patients with additional precautions is not required. When at home, linens, wash towels and bed linens in a washing machine set to the hottest water setting (with added bleach, if possible) and dry them in a hot dryer. Wash gym and athletic clothes after each wearing.

For further information refer to Routine Practices and Additional Precautions for Preventing the Transmission of Infection in Healthcare Settings (2107) from the Public Health Agency of Canada.

See the OSH Answers on Antibiotic/Antimicrobial Resistance in Bacteria and Organisms for more information.