can trauma cause or aggravate mrsa?

Answer 1

Trauma, will allow the growth of bacteria, and if Methacillin Resistant Staph aureus starts to grow there then yes. But trauma itself will not cause it directly. Most of the time antibiotics are given to prevent the growth of nasty bugs.

Answer 2

Trauma will neither cause nor aggravate an MRSA infection (It's a capitalized acronym). Staph a. is present everywhere and on the skin and is opportunistic. If trauma, either accidental or man-made such as a surgical incision, results in a break in the skin, if MRSA is already present in large enough numbers, infection may result. So while this kind of trauma can make it easier for MRSA infection to take hold, it's not technically causing it. By the same token, trauma will not aggravate it. What causes MRSA (methicillin-resistant Staph a.) is overexposure of the bacterium to methicillin.