Питання 7 з 50

What major discovery occurred in the century between the Great Influenza and COVID-19 outbreaks?

1. A The discovery of a highly effective antiviral medication
2. B The eradication of all influenza viruses
3. C The development of effective vaccines against all viruses
4. D The critical role of vaccines in preventing pandemics
5. E The understanding of how pandemics occur due to climate change

Правильна відповідь: D. The critical role of vaccines in preventing pandemics