# MRSA vs MSA

> English confusable word pair

## The two words

### MRSA
*noun · IPA /ˈɛm.ɑːɹ.ɛs.eɪ/ · frequency rank #41,266*
Initialism of methicillin-resistant Staphylococcus aureus; a bacterium responsible for serious infections.

### MSA
*noun · frequency rank #31,662*
Initialism of motorway service area.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/mrsa-vs-msa