BIO 211 - MRSA SG

Staphylococcus aureus

What is the bacteria organism that causes MRSA

30 different species, coccus, gram +, forms clusters, normal microbiota of skin and nose of healthy people, 20-30% of population colonized in nose, sometimes causes skin infection

What are some general characteristics of S. aureus?

Skin infections

What are some minor staph infection symptoms?

Surgical wound infections, bloodstream, pneumonia, UTI

What are some serious staph infection symptoms?

20-30%

What are the % of folks with S. aureus?

2%

What % of folks with MRSA?

Methicillin resistant Staphylococcus aureus

What is MRSA?

In 1959 methicillin was designed and used, created resistance against it in 1961

When did MRSA show up?

Vancomycin intermediate-resistant S. aureus

What is VISA?

Vancomycin resistant S. aureus

What is VRSA?

Healthcare Associated-MRSA

What is HA-MRSA?

Main reservoirs are infected patients, personnel can be reservoirs but mostly are links for transmission between patients

Where does HA-MRSA frequently occur?

Hands

What is the main transmission of HA-MRSA?

Community-associated-MRSA

What is CA-MRSA?

Common in people who have not been recently hospitalized or had a medical procedure. Usually more susceptible to more types of antibiotics.

What are some characteristics of CA-MRSA?

Drain boil/abcess,
Antibiotics: Vancomycin or teicoplanin (old) linezolid and daptomycin (new)
Prevention: wash hands, PPE, masks, gowns

What are the treatment regimens for MRSA?