Al-Salihi, K. A. & Khalaf, J. M. 2021 -- The emerging SARS-CoV, MERS-CoV, and SARS-CoV-2: An insight into the viruses zoonotic aspects. -- Veterinary World 14(1): 190-199.

Almelli, T., Alhabbal, A. & Labban, L. M. 2020 -- SARS-CoV-2, the tiny creature which scared the globe. -- Archives of Health Science 1-13.

Banerjee, A., Doxey, A. C., Mossman, K. & Irving, A. T. 2020 -- Unraveling the zoonotic origin and transmission of SARS-CoV-2. -- Trends in Ecology & Evolution 2794: 1-4.

Dawood, A. A. 2021 -- SARS-CoV-2 is originated from bat corona virus. -- Research Journal of Science and Technology 13(1): 31-32.

Demaneuf, xxx & Maistre, xxx 2020 -- Outlines of a probabilistic evaluation of possible SARS-CoV-2 origins. -- xxx

Fan, Y., Zhao, K., Shi, Z.-L. & Zhou, P. 2019 -- Bat coronaviruses in China. -- Viruses 11(210): 1-14.

Forster, P., Forster, L., Renfrew, C. & Forster, M. 2020 -- Phylogenetic network analysis of SARS-CoV-2 genomes. -- Proceedings of the National Academy of Sciences of the Unites States of America 2004999117: 1-3.

Hao, P., Zhong, W., Song, S., Fan, S. & Li, X. 2020 -- Is SARS-CoV-2 originated from laboratory? A rebuttal to the claim of formation via laboratory recombination. -- Emerging Microbes & Infections 9(1): 545-547.

Larsen, J. M. 2017 -- The immune response to Prevotella bacteria in chronic inflammatory disease. -- Immunology 151(4): 363–374.

Lippi, G., Henry, B. M. & Sanchis-Gomar, F. 2020 -- The real origin of SARS-CoV-2: does it really matter? -- Journal of Laboratory and Precision Medicine 1-4.

Lytras, S., Hughes, J., Xia, W., Jiang, X. & Robertson, D. L. 2021 -- Exploring the natural origins of SARS-CoV-2. -- xxx

Mirzaei, A. & Moghim, S. 2021 -- SARS-CoV-2, SARS and MERS: Three formidable coronaviruses which have originated from bats. -- Postepy Higieny Medycyny Doswiadczalnej 75: 91-100.

Murahwa, T., Onywera, H. & Nindo, F. xxx -- SARS-CoV-2 origins and evolution: Insights from coronaviruses recombination and phylogenetic analysis. -- xxx preprint

Navand, A. H., Soltani, S., Moghadami, M., Hosseini, P., Nasimzadeh, S. & Zandi, M. 2020 -- Diabetes and coronavirus infections (SARS-CoV, MERS-CoV, and SARS-CoV-2). -- Journal of Acute Disease 9(6): 244-247.

Sallard, E., Halloy, J., Casane, D., Decroly, E. & van Helden, J. 2021 -- Tracing the origins of SARS‑COV‑2 in coronavirus phylogenies: a review. -- Environmental Chemistry Letters doi.org/10.1007/s10311-020-01151-1.

Shashank, P., Prithvi, S. & Ramith, R. 2021 -- The Pathogenicity of MERS-CoV, SARS-CoV and SARS-CoV-2: A comparative overview. -- Research Journal of Biotechnology 16(1): 182-192.

Zhang, Y.-Z. & Holmes, E. C. 2020 -- A genomic perspective on the origin and emergence of SARS-CoV-2. -- Cell 181: 1-5.

Zhukovaa, A., Blassel, L., Lemoine, F., Morela, M., Voznica, J. & Gascuel, O. 2020 -- Origin, evolution and global spread of SARS-CoV-2. -- Comptes Rendus Biologies doi.org/10.5802/crbiol.29 1-20.