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The appearance of horizontal lines across the nails may be a sign of a previous infection with Corona

Professor Tim Spector, professor of genetic epidemiology at Kings College London, confirmed that strange-looking nails may be a sign of previous infection with the Coronavirus, adding that horizontal lines across the nail that appear several months after infection with the Corona virus can occur in both fingers Hands and feet.

According to the "Business Insider" site, Spector, who leads the largest study of symptoms of the Corona virus in the world, said that he had received multiple anecdotal reports of so-called "Covid nails" from people using the ZOE COVID Symptom Study application, which is a symptom tracker with more than 4 million users on World level.

Spector said this is not a random phenomenon because it can occur after other injuries as well.

The basic theory is that the stress streak in the nails forms after the body shuts down for a brief period of time to fight the infection during this time period the nails do not grow It can also happen after other stresses such as chemotherapy and severe malnutrition.

Dr Tania Bleeker, president of the British Association of Dermatologists, told HuffPost UK that dermatologists have seen Corona patients with horizontal lines on their nails as well.

She explained: "These changes have long been recognized as transverse spaces in the nails of many or all of the fingers, and sometimes the toenails, which are not harmful and usually regrow after several months."

The moon-shaped red lines across the nail are another manifestation of the Coronavirus that dermatologists reported last August.

Nails are a cheap alternative to antibody testing

Spector said that it is not yet clear whether the changes appearing on the nails are related to the severity of Coronavirus disease. With other infections, the more severe the disease, the more likely it is that a mark will appear on your nails.

Spector added: "It may be a sign of a severe infection for Corona, but it will be more beneficial if it is not so."

Spector explained that if the nail changes were a sign of a previous infection with the Corona virus, this may help people know if they have been infected with the Corona virus before without the need for a test that may be costly.

He said: "If we get enough numbers linked to corona without symptoms, then this is a cheap antibody test that people just need to look at their nails."