by Merry Youle — Are there en­vi­ron­ments where there are abun­dant bac­te­ria and no phages? Sounds like one of our Tal­mu­dic Ques­tions, but this one has a spe­cific an­swer, and that an­swer is Yes. That en­vi­ron­ment was found within a cys­tic fi­bro­sis (CF) lung…