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پاورپوینت در مورد Trends in Invasive Infection with MRSA
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Trends in Invasive Infection with MRSA
What is MRSA?
MRSA is Staphylococcus aureus with resistance to a specific class of antibiotics, penicillinase-resistant penicillins.
MRSA stands for methicillin-resistant Staphylococcus aureus .
Staphylococcus aureus is the scientific name for the bacteria that cause ‘staph’ infections, including:
most frequently, skin and soft tissue infections, such as boils
deeper infections, including invasion of the bloodstream and spreading around the body to cause serious, life threatening infections such as septicemia, abscesses, meningitis and pneumonia
MRSA were first reported in 1961 in England.
It took only a few months from introduction of the first penicillinase-resistant antibiotic to recognition of infections from MRSA.
What is MRSA? (cont.)
Clinically, MRSA isn’t particularly different than staph without methicillin resistance.
Methicillin resistance by itself is not an added risk for the individual having a staph infection.
Other antibiotics are still available to treat MRSA infections.
However, MRSA is a concern to medical and public health communities in general.
It represents a marked increase in antibiotic resistance in staphylococci.
Different antibiotics need to be used to treat and prevent it.
More expensive antibiotics, such as vancomycin, often have more side effects, and increasing their use may result in additional antibiotic resistance in staphylococci, potentially rendering them in the future very difficult to treat.
Reducing the number of staph infections caused by MRSA is important in fighting against antibiotic resistance.
How is MRSA transmitted?
Staph doesn’t always cause infections.
A person can have it in their throat or on their skin without having an infection, but is still able to transmit it to others.
Like other staphylococci, MRSA is spread:
From person to person
By skin-to-skin contact
Staph on the skin can develop into symptomatic infection when the skin becomes damaged, including in a hospital when an IV needle is placed through the skin.
Through intermediate objects (e.g., wrestling mats, towels)
There have been outbreaks among wrestlers and football players, persons sharing jacuzzis, persons in crowded jail settings.