Doctor Bolibok told how to identify a rare disease. Every year on February 28 (or February 29 in leap years) International Day of Rare (Orphan) Diseases is celebrated.

In Russia, orphan diseases are considered to be those that occur in no more than ten people per 100 thousand population. The doctor believes that the disease can be suspected by the clinical picture, “by concomitant diseases, and then confirmed by genetic tests.” “An examination to establish a diagnosis is carried out once in a lifetime,” he said.