TEHRAN- Iran is among the top 15 countries in the world for making great advances in treating immunodeficiency diseases, the secretary of the 8th International Conference of Immunodeficiency Diseases said on Saturday.

Nima Rezaei, speaking on the sidelines of the conference, said Iran is considered as the hub of the treatment of immunodeficiency diseases in the Middle East, IRNA reported on Saturday.

Iranian researchers have written more than 500 articles on immunodeficiency disorders, which have been published by valid scientific journals, Rezaei added.

He then noted that Iranians have pulled off maintaining a good cooperation with foreign researchers, the result of which has been the discovery of 10 genes.

So far 2,000 patients with immunodeficiency diseases have been identified in Iran, but the figure is not valid since some of the patients have died as a result of severe infection without proper diagnosis.

Family marriage has taken its toll on ranking Iran high among other countries in immunodeficiency diseases, he regretted.