Thye, A. Y.-K. ., Loo, K.-Y., Tan, K. B. C., Lau, J. M.-S., & Letchumanan, V. (2021). Insights into COVID-19 Delta variant (B.1.617.2). Progress In Microbes & Molecular Biology, 4(1). https://doi.org/10.36877/pmmb.a0000243