a group of people in a lab looking at something Jigsaw Puzzle

Training on mRNA Vaccine Production at the NIAID Vaccine Research Center Scientists from South Africa learn key aspects of the mRNA vaccine production process during a two-week visit to the VRC—part of an ongoing collaboration to share knowledge, expertise, and data to expedite mRNA vaccine production globally. Credit: NIAID https://www.flickr.com/photos/niaid/53109041066/ A free online jigsaw puzzle made of 28 pieces, playable without signup — click to start.