tetanus - bacteria, flu - ?

VIRUS
List of words for the clue tetanus - bacteria, flu - ? from the crossword:
DISEASE ECOLI TETANY TETANILLA LOCKJAW IMMUNOGLOBULIN IG ASIAN CDC AIL STAPH AGUE ILL TRISMUS TOXIN SPASMS SPASM CONTRACTION GRIPPE
WordClue
FLUSpanish or swine disease
ROTdisease, illness
EBOLAviral disease
DISEASEtetanus or cholera
LOCKJAWtetanus
BACTERIAflu - virus, tetanus - ?
INFIRMITYsickness, disease
INFLUENZAviral disease
PATHOLOGYstudy and diagnosis of disease
PSORIASISHuman disease
TULAREMIAbacterial disease
AFFLICTIONdisease
BRONCHITISlower respiratory disease
DIPHTHERIAInfectious disease
MENINGITISbacterial disease
RHEUMATISMHuman disease
BRUCELLOSISbacterial disease
LISTERIOSISbacterial disease
TUBERCULOSISbacterial disease
SALMONELLOSISbacterial disease
LOCKJAWtetanus
DISEASEtetanus or cholera