Pfizer announced that early analysis showed that their COVID-19 vaccine candidate was more than 90 percent effective. Now Pfizer, government agencies and the public health community are focused on how to make millions of doses of the vaccine and distribute them to the hospitals, clinics and pharmacies where people will receive two separate injections. If the FDA approves the vaccine in the coming weeks, as expected, Pfizer could in theory vaccinate millions of Americans by the end of the year. However, as the New York Times notes, this process hinges on the cooperation of multiple federal, state and local agencies, as well as providers and other stakeholders. The full New York Times article is available here.