Corona viruses belong to a group of not yet well known viruses isolated in patients with infections of the upper respiratory organs, especially in winter months. It is presumed that they provoke about 15% - 20% of all infections. However, in the last years more attention has been paid to the role of human corona viruses in the provocation of sickness in man and they are becoming a special field of interest in scientific studies.
[Coronaviruses].