| From the linked article[0]: “Yes, Moderna’s vaccine prevents transmission. One dose is good for reducing infection by 63%, two by over 90%.” The number of people you need to vaccinate with a 63% effective vaccine versus a 90% effective vaccine is a huge gap. There are two issues with vaccines that staring at these numbers won’t tell you: 1. Not everyone is going to get vaccinated. 2. The number of people who will get vaccinated is directly correlated with public trust. If you release a vaccine that is 63% effective, the “this vaccine doesn’t work crowd” and their hugely amplified voices on YouTube and social media will be exponentially worse. That snowballs into fewer people being vaccinated. Unlikely for us, with a less effective vaccine we need far more people being vaccinated. So you want a more effective vaccine because fewer people need to get vaccinated, more people will trust the vaccine, and more people will get vaccinated. (To pre-empt the bad-faith replies, this does _not_ mean we would sacrifice another six months to get a 98% effective vaccine (if it were possible) versus starting now. It’s a balance, of course.) Also very important is that a second dose isn’t just for effectiveness, it’s to boost the immune system’s response so that the conferred immunity lasts significantly longer. [0]: I struggled through this article. I find this self-congratulating “I’m smarter than everyone and I told you so in this other blog post” writing insufferable. |