tetanus - bacteria, flu - ?

VIRUS
List of words for the clue tetanus - bacteria, flu - ? from the crossword:
DISEASE CDC ECOLI TETANY TETANILLA LOCKJAW IMMUNOGLOBULIN IG ASIAN AIL STAPH AGUE ILL TRISMUS TOXIN SPASMS SPASM CONTRACTION GRIPPE
WordClue
DISEASEtetanus or cholera
LOCKJAWtetanus
BACTERIAflu - virus, tetanus - ?
LOCKJAWtetanus
DISEASEtetanus or cholera