Crossword answer
SALK
4 letters · Used for 4 different clues · 9 appearances · Last seen USA Today, June 20, 2026
Letter pattern
SALK
Clues that lead to SALK
Most recent firstAbout SALK in crosswords
SALK is a 4-letter answer that has appeared 9 times in our database across 4 different clues. It was most recently the answer to “Polio vaccine developer” in the USA Today crossword on June 20, 2026.
Other 4-letter answers
MIKEKaraoke gear
JABSRing exchange
FADEPale
OAHUMount Ka'ala's island
SANS___ serif, category for Arial or Helvetica
LASTThe ultimate in cataclysmal astonishment!
INCAAncient Andean
RILEReally get to
COOSDove calls
ASTOConcerning
MAINStreet that might run all the way through town
UFOS"The X-Files" topic
ETTA___ Place, female companion of Butch Cassidy and the Sundance Kid
ERIEOne of the Great Lakes
Every appearance of SALK (9)
Click to expand · newest first
Jun 20, 2026
Polio vaccine developer · USA Today · 34 Down
Aug 26, 2024
Vaccine pioneer · Eugene Sheffer · 27 Down
Aug 21, 2024
Polio vaccine discoverer · Eugene Sheffer · 43 Down
Feb 7, 2024
Polio vaccine pioneer · Eugene Sheffer · 43 Down
Oct 27, 2021
Vaccine pioneer · Eugene Sheffer · 48 Down
Jun 24, 2021
Polio vaccine discoverer · Eugene Sheffer · 60 Across
Feb 27, 2021
Polio vaccine pioneer · Eugene Sheffer · 3 Down
Jul 28, 2020
Polio vaccine discoverer · Eugene Sheffer · 38 Down
Apr 24, 2020
Polio vaccine discoverer · Eugene Sheffer · 30 Down