Abbas, S. , Selamoğlu, Z., Sevindik, M., Naqvi, M.R. , Abbas, M. , Bashir, S. , Khan, I.A. , Tahir, M.S. , Orooj, H. , Muller, M. , Batool, A. , Bhatti, M.R. , Hashim, R. , Kazi, B.M. , Mohammed, F.S. and Khan, A.S. 2023. Enhanced Heterologous Immuno-Boost (EHIB) Covid-19 Vaccines: a NOVEL CONCEPT: Enhanced Heterologous Immuno-Boost Covid-19 Vaccines. Eurasian Journal of Medical and Biological Sciences. 3, 2 (Dec. 2023), 67–79. DOI:https://doi.org/10.1071/ejmbs.v3i2.37.