1. Private Academic Consultant, Bangkok, Thailand
2. Adjunct Professor, Joseph Ayobaalola University, Ikeji-Arakeji, Nigeria
3. Honorary Professor, Dr. D. Y. Patil University, Pune, Maharashtra, India
4. Visiting Professor, Faculty of Medicine, University of Nis, Serbia
5. Visiting Professor, Hainan Medical University, Haikou, China
6. Distinguished Professor, Parasitic Disease Research Center, Suranaree University of Technology, Nakhon Ratchasima, Thailand