The clue "vaccines" last appeared in the The Washington Post crossword on March 23, 2017. The correct answer for this puzzle is "SERA", a 4-letter word.
Solution SERA is 4 letters long. So far we haven´t got a solution of the same word length.
There is 1 solutions. The longest is SERA with 4 letters, and the shortest is SERA with 4 letters.
No, "VACCINES" hasn´t seen a spike right now. Solvers are most interested in: Modify, Passion, Mixture, Jot and Really annoy.
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The solution is 4 letters long.