Further reading/resources:
- Genomic Surveillance for SARS-CoV-2 Variants (CDC)
- New coronavirus variant spreads in Denmark despite epidemic receding (Reuters)
- SARS-CoV-2 Variant – United Kingdom of Great Britain and Northern Ireland (WHO)
- See How the Vaccine Rollout Is Going in Your State (New York Times)
- Coronavirus Vaccine Tracker (New York Times)