Hybrid model for comprehensive covid-19 regional safety, risk assessment, and advanced vaccine analysisP. Ila Chandana Kumari, K. Swapna Rani, Gayatri Parasa, P. Sridhar, M.N. Sharath, Koppuravuri Gurnadha Gupta and G. ManikandanMATEC Web Conf., 392 (2024) 01154DOI: https://doi.org/10.1051/matecconf/202439201154