1. More than 1B doses of #Covid19 vaccine have been administered worldwide, the Bloomberg tracker reports. One might be tempted to think 1 in 8 people have received a dose, but that's not true. A quarter of the doses have been used in the US, where many people have received 2.
2. How many? Well, data from the @CDCgov vaccine tracker shows that at least 86.7 M people in the US have received 2 doses of vaccine. Most countries (not all, not the US) giving vaccine now are using an altered schedule, delaying 2nd doses to give more first doses.