The most common and most likely answer to this crossword clue is the 5 letter word VIRUS which also is the latest solution we found used in Newsday in 2006.
Flu bug crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| VIRUS | 100 % | 5 | 
Words with a meaning similar to the clue: Flu bug
These words may or may not be a possible solution to this crosswords clue.- virus
 - bugged
 - bugging
 - nug
 - disease
 - illness
 - ail
 - epidemic
 - ill
 - serum
 - viral
 - cdc
 
Crossword Answer definitions
VIRUS noun- A submicroscopic, non-cellular structure consisting of a core of DNA or RNA surrounded by a protein coat, that requires a living host cell to replicate, and often causes disease in the host organism.
 - A disease caused by these organisms.
 - Venom, as produced by a poisonous animal etc.
 - A type of malware which can covertly transmit itself between computers via networks (especially the Internet) or removable storage such as disks, often causing damage to systems and data; also computer virus.
 - Any type of malware.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution