Opinion sample before taking survey
Your answers can help end the pandemic quicker and with fewer casualties.
Current projections of vaccine effectiveness are 40-60%. This is similar to research-demonstrated mask effectiveness of 50-75%. Did you know this?
If vaccine effectiveness is 60% and half of a population have been vaccinated, what is the approximate reduction in COVID transmission rate?
How long do you think it will take to vaccinate most of the World's population?
Less than 3 months
3 to 6 months
6 months to a year
A year to 2 years
Longer than 2 years
Population (herd) immunity is all or nothing - a threshold effect?
Page 1 of 3
This content is neither created nor endorsed by Google. -
Terms of Service