For instance, theCDChas listed “loss of taste or smell” as a symptom of the virus.

Now there’s COVID nails.

According toHealthline, COVID nails are characterized by deep, horizontal lines and grooves in the fingernails.

Fingernails with grooved lines

Those who have experienced metabolic or inflammatory changes may develop Beau’s lines as well.

If they are close to your cuticles, the event probably occurred at least one month ago.

Unfortunately, an antibody test will not tell you much if you have already received theCOVID-19 vaccine.

fingernail with grooved lines

Note that a negative test result does not necessarily mean you didn’t have the virus.

Antibody levels may decrease below the detectable level after a few months.