Boston biotech conference led to 245,000 Covid-19 cases across US, genetic fingerprinting shows

- URL
- https://www.cnn.com/2020/12/11/health/superspreader-covid-boston-biotech-conference/index.html
- Format
- Narrative
- Tags
Researchers have tracked almost a quarter-million cases of COVID back to a single conference in February 2020 which was attended by 200 people.