I got my first shot of Pfizer. They automatically scheduled my second appointment for 3 weeks later, but I canceled it, with the plan to reschedule some other time. Two reasons for this: first, while I can't unilaterally impose First Doses First, I can at least impose First Dose First--my second appointment slot was made available for someone else. Second, booster shots for other diseases are typically most effective after a longer interval.
But once vaccine supply catches up with demand, how much longer does it make sense to wait? More long-run effectiveness is good, but the booster is also more valuable while Covid is more prevalent. Eventually, vaccination will drive R below... (read 151 more words →)