3 ms·
That’s not really true about smallpox - it’s R is somewhere between 5-8, SARS-CoV-2 is about 2.5. Higher R0 means you need a greater percentage vaccinated popu
by robbiep 6y ago
That’s not really true about smallpox - it’s R is somewhere between 5-8, SARS-CoV-2 is about 2.5.
Higher R0 means you need a greater percentage vaccinated population to achieve herd immunity