Persistence of the Salmonella typhi-paratyphi carrier state after gallbladder removal.

Tests conducted on 45 carriers of Salmonella typhi or S. paratyphi who had undergone gallbladder removal showed that 10 remained residual car&s six months or more aftm surgep The findings suggest that S . typhi tenh to persist in both the gallbladder and the bile ducts of carriers, that surgical removal of the gallbladder does not ensure elimination of the S. typhi-paratyphi carrier state, and that such surgey is not justified $pe$ormed merely to counteract the car&r state.