What technologies can be used to diagnose the flu?

A number of flu tests are available to detect influenza viruses in respiratory specimens. The most common are called “rapid influenza diagnostic tests (RIDTs).” RIDTs work by detecting the parts of the virus (antigens) that stimulate an immune response.

HOPE IT HELPS:)

PLEASE GIVE BRAINLIEST:D

not 100% sure but i'm gonna say it's

retains water

fine grained

and is loose

your welcome

brainliest? (;