Note: This is an article from the New York Times, available on their public website. An interesting and multi-step process with lots of quality control. Impressive.
www.nytimes.com/interactive/2021/health/pfizer-coronavirus-vaccine.html?campaign_id=9&emc=edit_nn_20210429&instance_id=29931&nl=the-morning®i_id=103138569&segment_id=56785&te=1&user_id=a3b6bc09e…