W. Allan Walker Conrad Taff Distinguished Professor of Pediatrics The overall mission of this laboratory is to determine the mechanism of “crosstalk” between colonizing bacteria and the developing human intestine immune... Read more about W. Allan WalkerPublicationsMember, Mucosal Immunology and Biology Research Center Massachusetts General Hospital 114 16th Street (114-3503) Charlestown, MA 02129-4404wwalker@mgh.harvard.edu p: 617-726-7988