An interesting article and all, but given that the UK and the US have pretty similar rates of vaccination at this point (<a href="https://www.bloomberg.com/graphics/covid-vaccine-tracker-global-distribution/" rel="nofollow">https://www.bloomberg.com/graphics/covid-vaccine-tracker-glo...</a>), for example much closer than either one is to France, Japan, Russia, or China (even though Russia and China have had domestically developed vaccines for longer), I'm not sure this is really a huge disparity that needs explaining.