MRSA

noun
\ ˌem-ˌär-ˌes-ˈā How to pronounce MRSA (audio) , ˈmər-sə How to pronounce MRSA (audio) \

Definition of MRSA

: any of several strains of a bacterium (Staphylococcus aureus) that are resistant to methicillin and related antibiotics (such as penicillin) and typically live harmlessly on skin and mucous membranes but may cause usually mild infections of the skin or sometimes more severe infections (as of the blood, lungs, or bones) especially in hospitalized or immunocompromised individuals — see ca-mrsa

First Known Use of MRSA

1979, in the meaning defined above

History and Etymology for MRSA

methicillin-resistant Staphylococcus aureus

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Dictionary Entries Near MRSA

Mrs.

MRSA

Mrs. Grundy

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Cite this Entry

“MRSA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/MRSA. Accessed 24 Jun. 2022.

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More Definitions for MRSA

MRSA

noun
\ ˌem-ˌär-ˌes-ˈā, ˈmər-sə How to pronounce MRSA (audio) \

Medical Definition of MRSA

: any of several strains of a bacterium (Staphylococcus aureus) that are resistant to methicillin and related antibiotics (such as penicillin) and often live harmlessly on skin and mucous membranes but may cause usually mild infections of the skin or sometimes more severe infections (as of the blood, lungs, or bone) especially in hospitalized or immunocompromised individuals The rise of superbugs that can survive multiple antibiotics—such as MRSA, the notorious "flesh-eating bacterium"—has turned once-trivial infections into persistent problems.— Valerie Ross, Discover MRSA—methicillin-resistant Staphylococcus aureus—lives harmlessly in the noses and on the skin of millions of people, but can cause serious harm if it enters the body through a cut and reaches the bloodstream, attacking bones and tissue.— Bob Meadows, People But in 2002 strains of MRSA that were also resistant to vancomycin began to emerge in hospitals.— Christopher T. Walsh et al., Scientific American — see ca-mrsa

History and Etymology for MRSA

methicillin-resistant Staphylococcus aureus

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