Basis of some vaccines WSJ Crossword Clue

By Last Update: MAY 9, 2026 Follow on Google

Crossword Answer

Click ? to reveal letters one by one before showing the full answer.

hint

Need a Hint? Try Solving It Yourself First

Use our Hints & Tips to uncover the answer.

Hint 1

hint

Hint 2

meaning

Hint 3

explanation
questions

Frequently Asked Questions About This Clue

The most common and recent 3-letter answer for "Basis of some vaccines" is RNA.

The clue refers to the fact that some modern vaccines, like the COVID-19 vaccines from Pfizer and Moderna, use RNA technology. RNA serves as a template for cells to produce a protein that triggers an immune response.

RNA is a molecule that carries genetic information necessary for the synthesis of proteins.

Cells in compound, Single-stranded molecule, Messenger molecule in bio class, Molecule with the nucleotides G, U, A and C, Modern vaccine component

WSJ Crossword - February 14, 2026 - WSJ Crossword - May 09, 2026

The clue “Basis of some vaccines” is a classic crossword staple, frequently appearing in puzzles like the WSJ crossword. For the puzzle dated May 9 2026, the definitive 3-letter answer is: RNA.

Expert Tip: When you’re stuck, try to analyze the structure of the clue itself. Is it a direct definition, a pun, a fill-in-the-blank, or a pop culture reference? Identifying the type of clue you’re dealing with is a key skill for improving your solving speed.

Finished the WSJ Puzzle? Check out this link for future puzzles:

Play the Official Game