Ciprofloxacin-resistant Salmonella enterica Serotype Typhi, United States, 1999-2008.
Medalla F, Sj?lund-Karlsson M, Shin S, Harvey E, Joyce K, Theobald L, Nygren BN, Pecic G, Gay K, Austin J, Stuart A, Blanton E, Mintz ED, Whichard JM, Barzilay EJ. Ciprofloxacin-resistant Salmonella enterica Serotype Typhi, United States, 1999-2008. Emerg Infect Dis. 2011 Jun; 17(6):1095-8.