__ Flu of 1918, Infected 500 Million Worldwide
This page is the CodyCross answer for the clue below from Airport, Group 458, Puzzle 2 (Pilot in Command).
Question is: __ Flu of 1918, Infected 500 Million Worldwide
and the answer is: SPANISH
Word Meaning:
SPANISH — (printing) To subject to spanishing, a printing process in which an ink is deposited on the bottoms and sides of depressions formed in a plastic material
Definitions from Wiktionary.