What is the answer to the WSJ Crossword clue "Modern vaccine component" from August 18, 2026?

Crossword clue

“Modern vaccine component”

This clue appeared as 59-Down in the WSJ Crossword on Tuesday, August 18, 2026. The answer has 3 letters.

Answer · 3 lettersFirst appearance

RNA

Letters3

Starts withR

Ends withA

Vowels1

Where this clue has appeared

WSJ Crossword
Aug 18, 20263 letters→

About this clue

The clue “Modern vaccine component” ran in the WSJ Crossword on August 18, 2026 as 59-Down. Its answer is a 3-letter word that starts with R and ends with A.

See every answer from the puzzle on the WSJ Crossword page for August 18, 2026, or learn how clues like this work in our guide to crossword clue types.

More clues from this puzzle

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FAQ

What is the answer to the “Modern vaccine component” clue?+

The answer is RNA (3 letters), from the WSJ Crossword of August 18, 2026.

Where has this clue appeared?+

We have seen it 1 time in the WSJ Crossword.

How do I find other WSJ Crossword answers?+

Open the full list of answers for August 18, 2026, or browse every date on the WSJ Crossword hub.