Sahoo, Jyoti Prakash, and Kailash Chandra Samal. “World on Alert: WHO Designated South African New COVID Strain (Omicron B.1.1.529) As a Variant of Concern”. Biotica Research Today 3, no. 11 (November 29, 2021): 1086–1088. Accessed May 19, 2024. https://biospub.com/index.php/biorestoday/article/view/1244.