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Polio vaccine developer USA Today Crossword Clue

Down clue · from the June 20, 2026 puzzle

Stuck on “Polio vaccine developer” from the USA Today Crossword? Here is the verified answer:

Answer
SALK
4 letters · Down · last seen June 20, 2026

More clues from the June 20, 2026 puzzle

1D"Of Mice and ___"3 1ACOVID protection gear4 2D"Indeed, captain!"3 3DStitch3 4DTV shows like "Squid Game"7 5APet collar attachment5 5DSmall bay5 6DFuel for most semi trucks6 7DArticle in some hip-hop titles3 8DCommon remote batteries3 9DTakes a turn for the worse9 10AReddit or Instacart3