flu
US /fluː/
UK /fluː/

1.
gripe
a common infectious disease that causes fever, headache, and catarrh and is caused by a virus
:
•
I've got the flu and feel terrible.
Tengo la gripe y me siento fatal.
•
The doctor said it's just a mild case of the flu.
El médico dijo que es solo un caso leve de gripe.