Abbreviations and inconsistency: Where is the “V” in ART?
I’m editing a document about HIV/AIDS and, while I can’t stand abbreviations, this example especially bothers me: “antiretrovirals” has the abbreviation “ARV,” but “antiretroviral therapy” is abbreviated “ART.” What happened to the V? To be consistent, shouldn’t it be abbreviated “ARVT?”
Why aren’t abbreviations consistent? Why are there countless rules for the English language, but none for creating abbreviations? People can’t just create punctuation, but abbreviations are made at will.
And why are abbreviations often incorrectly called acronyms. Per The Chicago Manual of Style (rule 15.3, 15th edition):
- It’s only an acronym if just the first letter of each word is used and it’s read as a single word, as in PEPFAR (which stands for the U.S. President’s Emergency Plan for AIDS Relief).
- If an extra letter is thrown in, as with ART and ARV, it’s an abbreviation.
- A term is an initialism if it’s read as a series of letters, such as GRE and ATM

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