SUKUMARAN, S., and S. SATHIANARAYANAN. “A REVIEW ON COVID-19 PANDEMIC A GLOBAL THREAT-CURRENT STATUS AND CHALLENGES AND PREVENTIVE STRATEGIES”. International Journal of Applied Pharmaceutics, vol. 13, no. 5, Sept. 2021, pp. 10-14, doi:10.22159/ijap.2021v13i5.42070.