MERSvsMRSAWhat's the difference?

Which to use

“MERS” and “MRSA” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#45,510
“MERS” frequency rank
#41,266
“MRSA” frequency rank
86776
confusion score

Side-by-Side Comparison

Feature MERS MRSA
Definition Acronym of Middle East respiratory syndrome. Initialism of methicillin-resistant Staphylococcus aureus; a bacterium responsible for serious infections.

Where the spellings diverge

Shared letters are muted; the letters that actually set MERS and MRSA apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

4 ch
MERS
4 ch
MRSA

Spelling & Dictionary Insight

A purely visual mix-up. MERS (/mɝz/) and MRSA (/ˈɛm.ɑːɹ.ɛs.eɪ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 86776, derived from the frequency rank of both members and their visual similarity.

MERS is recorded at frequency rank #45,510, classified as anoun, pronounced /mɝz/. MRSA is at rank #41,266, tagged as anoun, pronounced /ˈɛm.ɑːɹ.ɛs.eɪ/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 86776, this pair ranks #8,513 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of MERS vs MRSA

Shared letters: mrs. Private to "MERS": e. Private to "MRSA": a.

"MERS" · 4 letters · shape CVCC  ·  "MRSA" · 4 letters · shape CCCV

Known mistypes of this pair

  • MERSemrs · merrs · merss · mesr · mmers · mres
  • MRSAmmrsa · mrrsa · mrssa · msra · rmsa

Frequency comparison

MERS#45,510
MRSA#41,266

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "MERS" and "MRSA" be used interchangeably?
No. They are said differently (/mɝz/ versus /ˈɛm.ɑːɹ.ɛs.eɪ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "MERS" or "MRSA"?
"MRSA" is the more common of the two: it sits at frequency rank #41,266 in our English list, against #45,510 for "MERS". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering MERS vs MRSA

The fastest way to pick the right one every time.

  • Read both glosses above and match the meaning you intend, only context separates this pair.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “MERS” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list