Dr. Arif Jamal Siddiqui currently working as Assistant professor of Biology department, University of Hail, Saudi Arabia and he is Associate Editor of many journals. Previously, he has been worked as a Post-Doctoral Fellowship in Texas Tech University Health Sciences Center, ( 2015 and 2018). In 2011; he has been awarded a scholarship by the Indian Council of Medical Research (ICMR), New Delhi India for Higher Education Council to pursue a PhD in Parasitology and Immunology at the CSIR-Central Drug Research Institute Lucknow (CDRI) India, and completed his PhD in 2015. His research experience and interest are to study host-parasites interaction, role of stem cells in neurodisorder diseases, Immune response (specific T, B, MQ, Dendritic cells and specific memory T, B related study). Presently, he works on parasite diversity, , natural bioactive compound role in cancer, Immune behaviors & responses. He has more than 12- years research experiences in the field of studying clinically and economically important human pathogens. He has served as referee for a number of international journals (MDPI). He has also published more than 45 research articles in the peer-reviewed international journal and authored or co-authored many book chapters