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“Basis of recent vaccines”

The verified answer to the Newsday Crossword clue “Basis of recent vaccines”, with letter-by-letter analysis and the full puzzle context for the Sunday, June 8, 2025 puzzle.

Published · Down · 3 letters

Hints first

Letters 3
First letter R
Last letter A
R ? A

A 3-letter down entry from the Sunday puzzle

The Answer

R N A

The answer to “Basis of recent vaccines” is RNA

Letters 3
Direction Down
Published Jun 8, 2025

Letter analysis: the 3-letter answer

Vowels, consonants, and crossword construction notes
Unique 3 of 3 positions
Vowels 1 33% of word
Consonants 2 non-vowels
First letter R starts with

The clue “Basis of recent vaccines” appeared in the Newsday Crossword on Sunday, June 8, 2025 as a down entry. The verified answer is RNA — a 3-letter word that begins with R and ends with A.

This answer contains 1 vowel and 2 consonants. The Newsday Crossword is published daily by Newsday on Long Island and edited by Stan Newman, whose Saturday Stumper is widely considered one of the toughest mainstream crosswords in print.

Other clues with the answer RNA

RNA has been used as the answer for these Newsday Crossword clues
“Molecule with much ribose” Jun 12, 2026 “Molecule with much ribose” Jun 12, 2026 “Molecule with much ribose” Jun 12, 2026 “One-strand molecule” Mar 19, 2026 “"Micro" discovery that won a 2024 Nobel Prize” Mar 14, 2026 “Single-strand genetic letters” Feb 4, 2026 “Chain letters” Jan 10, 2026 “Cellular material” Oct 31, 2025 “Molecule used for vaccines” Jul 30, 2025 “Single-helix molecule” Jun 22, 2025 “Single-strand molecule” May 18, 2025

More clues from the June 8, 2025 puzzle

Sunday Newsday Crossword
View full puzzle
Do seemingly impossible things 15 ℓ · D Suffix for absorb 3 ℓ · D Necessarily involve 6 ℓ · D Individually, slangily 4 ℓ · A Brown who wrote The Da Vinci Code 3 ℓ · A Where St. Pete is 3 ℓ · D Poet Khayyam 4 ℓ · D Butter __ ice cream 5 ℓ · D Boot up again 7 ℓ · D Baker's gadget 6 ℓ · A Without precedent 3 ℓ · D Hex- doubled 5 ℓ · D "Poison" plants 5 ℓ · D Charlotte __, VI 6 ℓ · D Thesaurus entries 5 ℓ · D Metal in pewter 3 ℓ · D Brazilian soccer great 4 ℓ · A Muse of poetry 5 ℓ · D Express relief 4 ℓ · D Fragrance 5 ℓ · D

Frequently asked questions about “Basis of recent vaccines”

What is the answer to “Basis of recent vaccines” in the Newsday Crossword?

The verified answer is RNA — a 3-letter word that appeared as a down entry on Sunday, June 8, 2025.

How many letters is the answer to “Basis of recent vaccines”?

The answer RNA contains 3 letters.

Was “Basis of recent vaccines” an across or down clue?

This clue ran as a Down entry.

Is this site affiliated with Newsday?

No. This is an independent fan reference site — we are not affiliated with Newsday. The Newsday Crossword is a trademark of its respective owner. We solve and verify each Newsday Crossword puzzle manually before publishing the answer key.

Basis of recent vaccines — Newsday Crossword Clue Answer | Newsday Crossword Answers