3. Results and discussion
We screened 2,95,000 complete genomes of CoV-2, reported worldwide in GISAID (Dec, 2019-Dec, 2020), for variants in S, N, M, and E proteins. A large number of mutations were detected in structural proteins of CoV-2 (Table 1). However, the patterns of mutation are still unknown. This wide range of variations projects toward the number of strains variation of virus present worldwide.