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Daily Newsday Crossword

“Vaccine medium”

The verified answer to the Newsday Crossword clue “Vaccine medium”, with letter-by-letter analysis and the full puzzle context for the Thursday, May 14, 2026 puzzle.

Published · Down · 5 letters

Hints first

Letters 5
First letter S
Last letter M
S ? ? ? M

A 5-letter down entry from the Thursday puzzle

The Answer

S E R U M

The answer to “Vaccine medium” is SERUM

Letters 5
Direction Down
Published May 14, 2026

Letter analysis: the 5-letter answer

Vowels, consonants, and crossword construction notes
Unique 5 of 5 positions
Vowels 2 40% of word
Consonants 3 non-vowels
First letter S starts with

The clue “Vaccine medium” appeared in the Newsday Crossword on Thursday, May 14, 2026 as a down entry. The verified answer is SERUM — a 5-letter word that begins with S and ends with M.

This answer contains 2 vowels and 3 consonants. The Newsday Crossword is published daily by Newsday on Long Island and edited by Stan Newman, whose Saturday Stumper is widely considered one of the toughest mainstream crosswords in print.

Other clues with the answer SERUM

SERUM has been used as the answer for these Newsday Crossword clues
“Vaccine fluid” Nov 11, 2025 “Vaccine fluid” Oct 27, 2025

More clues from the May 14, 2026 puzzle

Thursday Newsday Crossword
View full puzzle
Certain cash stashes 4 ℓ · D Sound of a loud impact 5 ℓ · A Fir relative 5 ℓ · D Prohibition potation 5 ℓ · D Reduced by 5 ℓ · D Swag holder 4 ℓ · D Farm baby 4 ℓ · A Remote location 6 ℓ · D Question of confirmation 4 ℓ · A Someone like you 4 ℓ · D Burning braid 4 ℓ · D Tough luck 9 ℓ · D City near Madrid 5 ℓ · D __ skiing (Dubai diversion) 6 ℓ · D Longing 4 ℓ · D Adidas alternative 4 ℓ · A First-century despot 4 ℓ · A Speak up with 5 ℓ · A Some cheeses' exterior 4 ℓ · A

Frequently asked questions about “Vaccine medium”

What is the answer to “Vaccine medium” in the Newsday Crossword?

The verified answer is SERUM — a 5-letter word that appeared as a down entry on Thursday, May 14, 2026.

How many letters is the answer to “Vaccine medium”?

The answer SERUM contains 5 letters.

Was “Vaccine medium” an across or down clue?

This clue ran as a Down entry.

Is this site affiliated with Newsday?

No. This is an independent fan reference site — we are not affiliated with Newsday. The Newsday Crossword is a trademark of its respective owner. We solve and verify each Newsday Crossword puzzle manually before publishing the answer key.

Vaccine medium — Newsday Crossword Clue Answer | Newsday Crossword Answers