Five years after COVID appeared, mysteries remain. Here’s what we know - Euronews
- Five years after COVID appeared, mysteries remain. Here’s what we know Euronews
- 5 things we know and still don’t know about COVID, 5 years after it appeared The Associated Press
- Five years on, have we learned the lessons of covid-19? New Scientist
- COVID-19 epidemiological update – 24 December 2024 World Health Organization
- Five years of the COVID-19 pandemic: An interview with Dr. Arijit Chakravarty WSWS