Table 2.
Variants of SARS-CoV-2 Reported Worldwide20
| Variant | Country of First Case | Countries Reported in (no.) a | Transmissibility b | Virulence | Number of Mutation | Diagnostic Assay c | Mutation Type |
|---|---|---|---|---|---|---|---|
| B.1.1.7 | United Kingdom | 137 | 43% to 90%71 | NA | 18 | Work | H69/V70 del,Y144 del, N501Y, A570D, P681H, S106/G107/F108 del |
| B.1.351 | South Africa | 85 | NA | NA | 8 | Work | L242/A243/L244 del, K417N, E484K, N501Y, S106/G107/F108 del |
| P.1 | Brazil | 52 | 42%72 | NR | 21 | Work | K417T, E484K, N501Y, S106/G107/F108 del |
Notes: aBased on weekly report published on 20 April 2021 by WHO; data from reference;73 bTransmissibility is relative to that of the original SARS-CoV-2 strain reported in UK, USA, Ireland, Switzerland, and Denmark; cDiagnostic test capable of identifying those variants.
Abbreviations: NA, not available; NR, not reported.