Seasonal threat (3)
I believe the answer is:
flu
(Other definitions for flu that I've seen before include "In brief, winter illness" , "Common ailment" , "Viral illness" , "Infection reduced" , "Influenza, in short" .)
I believe the answer is:
flu
(Other definitions for flu that I've seen before include "In brief, winter illness" , "Common ailment" , "Viral illness" , "Infection reduced" , "Influenza, in short" .)