3 ms·
1. Smallpox vaccine is 100% effective 2. 90% is high. 3. Probably not. Immune systems are weird and incredibly complicated (think even more complicated than
by singingfish 6y ago
1. Smallpox vaccine is 100% effective
2. 90% is high.
3. Probably not. Immune systems are weird and incredibly complicated (think even more complicated than the brain).
- bawolff 6y agoI dont think its true that smallpox is 100% effective
- bjoli 6y agoIt isn't. It is comparable to the measles vaccine. Smallpox has a lot lower R-value which means the vaccine is very good at preventing outbreaks. A vaccinated individual will also have milder symptoms. Together with how rare adverse reactions are to the vaccination, the smallpox vaccine is really a wonder.
- robbiep 6y agoThat’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
- singingfish 6y agoJust to nit-pick and split semantic hairs, but it was certainly the vaccine (and ease of disease identification) that lead to smallpoxes eradication. In that sense the vaccine was 100% effective.