- Study of antiviral and anti-tumor activities of natural and synthetic products.
- Study of antiviral and anti-tumor activities of plant extracts; isolation and purification of the active components; study of their merchanism of action.
- Study of various aspects related to the activity of the human T-cell lymphotropic virus (HTLV-I) Tax gene.
- Study of genetic disorders that resulted in identifying new gene mutations and new causative genes. characterization of such genetic disorders had an international scientific impact as well as a specific benefit for the concerned families.