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Methicillin-resistant Staphylococcus Aureus (MRSA) is a type of bacteria that is resistant to certain antibiotics including methicillin and other more common antibiotics such as penicillin and amoxicillin.

This means that treatment may be longer and more expensive.
 
That’s why MRSA infections have become a topic of concern for hospitals and long-term care facilities during the past decade.
 
MRSA is resistant to all beta-lactam antibiotics, which includes all penicillin medications and a very big group of medications called ce

phalosporins.
Infections with this species of Staphylococcus are present most frequently among persons in hospitals and healthcare facilities. The first documented MRSA outbreak in the United States occurred at a Boston hospital in 1968.
 
The fact is that this bacterium is commonly found on human skin and the most common places include the inside of the nose, the armpit, groin, and genital area.
When a person carries the bacterium which is causing no problems or illnesses of any kind, it is called colonization. When the bacteria do cause illness it is considered that this person is "infected" with Staphylococcus Aureus.

Target population and risks

Older or very ill hospital patients are the most common target population for the Methicillin-resistant Staphylococcus Aureus. People who use antibiotics frequently, long intensively or for a long period of time, as well as the intravenous drug users, are at a higher risk of developing this kind of infection. Patients that are under strong immunosuppressive therapy like those who were diagnosed with some kind of cancer are also at an increased risk.
 
However this can happen to everyone who had some kind of operation because an open wound is also a possible entrance for these bacteria. Methicillin-resistant Staphylococcus Aureus rarely attacks healthy people.
 
People that have a urinary catheter should also be aware that they belong to the high-risk gropu of  patients.

Transmission

These infections were always associated with hospitals, but in the last couple of years, physicians and other healthcare providers have noticed an increasing number of people infected with MRSA who lack the most common risk factors.

Therefore, there are two types on infection:

  • Community-associated MRSA (CA-MRSA) infections
  • Healthcare-associated MRSA (CA-MRSA) infections


Recent and excessive antibiotic use, recurrent skin diseases, and bad living conditions are the most common risk factors for MRSA infections in the community.
It is proven that MRSA lives on skin and survives on objects and surfaces for more than 24 hours. The fact is that MRSA is usually spread by direct, physical contact. An indirect contact is also very important from the epidemiologic point of view because MRSA can also be spread through contact with objects such as towels, sheets, workout areas and sports equipment that have the bacterium on them.


Continue reading after recommendations

  • www.metrokc.gov/health/ - instructions for stopping the infection
  • health.state.ga.us/