A. Sharff Jeffres Rio Marques Panda Yoshizumi

149 TUESDAY SCIENTIFIC SESSIONS Final Program D-1421 Antimicrobial Resistance Profile of Salmonella Isolates from Typhoid Fever Outbreak in Rwanda, May 2011

I. M. Uwimana

1 , T. Mukankwiro 1 , N. Umulisa 2 , E. Habyarimana 3 , J. Flan- din 4 , O. Mukabayire 1 ; 1 RBCIHDPCNatl. Reference Lab., Kigali, Rwanda, 2 RBCIHDPCMalaria Div., Kigali, Rwanda, 3 Ruhengeri District Hosp., Musanze, Rwanda, 4 Natl. Reference Lab., Kigali, Rwanda. D-1422 Importance of Appropriate Antibiotic Usage in the Clearance of Acinetobacter baumannii Bacteremia

Y. Chuang

1 , S. Chang 1 , W. Wang 2 ; 1 Natl. Taiwan Univ. Hosp., Taipei, Tai- wan, 2 John A. Burns Sch. of Med., Univ. of Hawaii at Manoa, Honolulu, HI. D-1423 MALDI-ToF MS and Direct Antimicrobial Susceptibility Testing from Positive Blood Cultures: Comparison of the Bac- talert and Bactec System

H. Wisplinghoff

1,2 , T. Hoppe 2 , A. Hamprecht 1 , U. Aurbach 2 ; 1 Univ. of Cologne, Cologne, Germany, 2 Dres. Wisplinghoff Colleagues, Cologne, Germany. ------------------------------------------------------------------------ 171 D Poster Session Diagnosis, Characterization and Antimicrobial Susceptibility Testing: Gram-Positive Cocci Tuesday, 11:15 a.m.–1:15 p.m. . . . . . . . . . . . . . . . . . . . Halls A-C Presentations: D-1424 Evaluation of a Cost Effective Broth and Selective Agar Combination for the Detection of MRSA and Staphylococcus aureus from Surveillance Specimens

E. L. Chan, D. Seales; Trinity Med. Ctr., Birmingham, AL. D-1425

Droplet Digital PCR for Detection of Methicillin-Resistant Staphylococcus aureus from Clinical Swabs

D. C. Sullivan

1 , K. L. Kelley 1 , B. A. Chapman 1 , P. Belgrader 2 ; 1 Univ. of Mis- sissippi Med. Ctr., Jackson, MS, 2 BioRad Clin. Diag. Group, Hercules, CA. D-1426 Rapid Methicillin-Resistant Staphylococcus aureus MRSA Screening on Admission to Pediatric and Neonatal Intensive Care Units in an Italian Pediatric Hospital R. Bandettini, M. Perotti, F. Risso, A. Moscatelli, M. Diana, L. Pescetto, L. Ricagni, E. Castagnola; Ist. G. Gaslni, Lab. Centrale, Genoa, Italy. D-1427 Evaluation of the Xpert Methicillin-Resistant Staphylococcus aureus MRSA Assay for Rapid Detection of Nasal Carriage of MRSA Withdrawn. D-1428 A New Multiplex Pcr to Detect Sccmec Types in Methicillin- Resistant Staphylococcus aureus of Nasal Carriage F. S. Cavalcante, D. C. Ferreira, Y. C. Lyra, F. Monteiro, E. D. Abad, K. R. N. dos Santos; Univ. Federal do Rio de Janeiro, Rio de Janeiro, Brazil. D-1429 Phage Open-Reading Frames Typing Method for Methi- cillin-Resistant Staphylococcus aureus Outbreak Investigation in Neonatal Intensive Care Unit S. Matsushita, T. Shoji, K. Kinoshita, Y. Horikoshi; Tokyo Metropolitan Children’s Med. Ctr., Tokyo, Japan. D-1430 Automated System Fails to Detect an Unusual Macrolide Resistance Phenotype among Methicillin-Resistant Staphylococcus aureus T. Hosbul 1 , B. Bozdogan 2 , T. Haznedaroglu 1 , M. Ozyurt 1 ; 1 Gulhane Mili- tary Med. Academy, Haydarpasa Training Hosp., Istanbul, Turkey, 2 Adnan Menderes Univ. Faculty of Med., Aydin, Turkey, Aydin, Turkey. D-1431 Reduced Activity of Clindamycin against Various Strepto- cocci with Clindamycin-Inducible Resistance in the Neutropenic Thigh Infection Model A. J. Lepak 1 , W. A. Craig 1 , D. R. Andes 2 , K. Marchillo 3 , J. van Hecker 3 ; 1 Univ. of Wisconsin, Madison, WI, 2 Univ. of Wisconsin, William S Middle- ton Mem. VA Hosp., Madison, WI, 3 William S Middleton Mem. VA Hosp., Madison, WI. D-1432 Use of DNA Microarray to Characterize Oxacillin-Susceptible, mecA-Positive Staphylococcus aureus

K. A. Sharff

1 , S. Slaughter 2 , G. Forrest 3 , C. Pfeiffer 3 , S. Monecke 4 , R. Ehricht 5 , M. Oethinger 2 ; 1 Oregon Hlth. Sci. Univ., Ptld, OR, 2 Providence Med. Ctr., Portland, OR, 3 VA Med. Ctr., Portland, OR, 4 Inst. for Med. Microbiol. and Hygiene, Dresden, Germany, 5 Alere Technologies, Jena, Germany. D-1433 Comparison of Etest and Broth Microdilution BMD MIC Methods for Testing Staphylococcus aureus SA and Streptococcus agalactiae GBS with Ceftaroline D. J. Diekema 1 , J. H. Jorgensen 2 , M. A. Lewinski 3 , L. Boyken 1 , L. C. Fulcher 2 , M. L. McElmeel 2 , M. A. Tagarao 3 , J. A. Hindler 3 ; 1 Univ. of Iowa Hosp. and Clinics, Iowa City, IA, 2 Univ. of Texas Hlth. Sci. Ctr., San Anto- nio, TX, 3 UCLA Hlth. System, Los Angeles, CA. D-1434 Onsite hVISA Detection: One Hospital’s Story

M. Jeffres

1,2 1 Roseman Univ. of Hlth. Sci., Henderson, NV, 2 Univ. of Nevada Sch. of Med., Las Vegas, NV. D-1435 Prevalence and Relevance of Detecting Vancomycin Het- eroresistance among Methicillin-Resistant Staphylococcus aureus Bacteremia V. Huang, S. Sambhara, C. Bishop, J. Attardo; Mercer Univ. Coll. of Phar- macy and Hlth. Sci., Atlanta, GA. D-1436 Increased Cell Wall Stiffness in Vancomycin-Resistant Staph- ylococcus aureus Measured by Atomic Force Microscopy

L. Rio Marques

1 , G. Longo 2 , S. Kasas 2 , A. Trampuz 1 , A. Bizzini 1 ; 1 Univ. Hosp. Lausanne, Lausanne, Switzerland, 2 Ecole Polytechnique Fédérale Lausanne, Switzerland. D-1437 Hexaplex PCR Assay for Detection of Staphylococcus aureus, mecA, czrC, QacAB and Pantone-Valentine Leucocidin Genes with Simultaneous Discrimination from Coagulase Negative Staphylococci

S. Panda

1 , S. Kar 2 , R. Choudhury 1 , S. Sharma 2 , D. V. Singh 1 ; 1 Inst. of Life Sci., Bhubaneswar, India, 2 LV Prasad Eye Inst., Bhubaneswar, India. D-1438 The First Report of Daptomycin Susceptibility of 832 Strains of Gram-Positive Cocci from an University Hospital in Japan 2009-2011

A. Yoshizumi

1 , M. Iwata 2 , H. Murakami 2 , S. Yumoto 2 , K. Yasui 2 , C. Maehara 2 , S. Fukuzawa 2 , K. Enokizono 2 , A. Hikosaka 2 , Y. Ishii 1 , K. Tateda 1 ; 1 Toho Univ., Tokyo Japan, 2 Toho Univ. Omori Med. Ctr., Tokyo, Japan. 150 SCIENTIFIC SESSIONS September 9-12 | D-1439 Staphylococcus aureus Enterotoxins Relevance in Atopic Der- matitis: Clinical, Immunological and Microbiological Parameters A. Rojo, A. Aguinaga, G. Gastaminza, J. R. Yustet, A. España; Clin. Univ. Navarra, Pamplona, Spain.