NEW YORK TIMES | Rapid genomic tests are poised to change the way doctors diagnose and treat bacterial infections, but cost concerns may limit widespread use despite their usefulness. Developers of the some of the devices say that once the genetic sequence of a novel pathogen has been made publicly available, the information could be quickly uploaded and used to identify those infected. NYT Health and Science journalist Andrew Jacobs interviews experts at T2, Day Zero Diagnostics and other companies about the benefits of using these advanced technologies to diagnose serious infections, and the challenges that companies face in getting governments and hospitals to use better technology .