Spanish scientists have discovered a new symptom coronavirus infection. The study showed that 29% of patients in the oral cavity there is a strong rash on the mucosa of enanthema.

Doctors have examined the data from 21 patients aged 40 to 69 years. It was found that almost one third of cases the rash appeared about two days before other symptoms COVID-19, according to JAMA Dermatology.

Doctors are not yet able to say with certainty how widespread this symptom is common. Its study is complicated by safety regulations, which creates complexity when inspecting the oral cavity of infected patients.

Previously, canadian scientists have identified an unexpected first symptom of coronavirus. He was a 29-year-old patient who went to the doctors because of eye problems. The girl complained of persistent redness of the eyes. The doctors thought it was conjunctivitis and was hospitalized. Usually inflammation of the tissue covering the eye and the posterior surface of the eyelids, treated pretty quickly. But this time, doctors are faced with a number of difficulties. Traditional treatment, the patient was not helped. After learning that the patient was on a trip to Asia, the doctors made her test COVID-19. It showed a positive result, while the patient has neither cough nor fever nor any other symptoms wrote