Washington Post: “The vaccines need to be distributed across 50 states, plus U.S. territories, that have different demographics and shifting needs. The leading products must be stored at different temperatures and have different minimum orders, with each requiring two shots though the three vaccines don’t all share the same schedule…Complicating matters: A final decision on who is eligible to get the early doses must wait for a federal advisory group’s recommendations. That can’t happen until regulators authorize the new vaccines. And once set in motion, the distribution — from loading dock to upper arm — has to be accomplished equitably and with as few handoffs as possible because it’s all being done amid a pandemic…”