Scientists have found subtle and dangerous symptom coronavirus infection. It is reported Mk.ru.
A very dangerous symptom coronavirus believe the blue hue of the lips. They talk about the lack of oxygen in tissues and organs. Researchers are advised to immediately call an ambulance upon detection of this symptom.
Also signs Covid-19 are: a persistent dry cough, fever, headache, loss of taste and smell and feeling of “weakness”. In the presence of these symptoms should consult a doctor.