Seiji Okayama

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The pandemic (H1N1) influenza virus continues to be the predominant circulating virus in both the northern and southern hemispheres. In February 2009, during the early stage of the worldwide H1N1 influenza virus (influenza A) pandemic, we experienced a case of hemorrhagic colitis after infection with influenza A. A 21-year-old man with no serious disease in(More)
We carried out experimental and clinical studies on tobramycin (TOB), and the following results obtained. 1. Antibacterial activity Minimum inhibitory concentration (MIC) of TOB against clinically isolated 20 strains of P. aeruginosa, E. coli, K. pneumoniae, P. mirabilis, S. marcescens and S. faecalis was determined. Except of S. marcescens, the great part(More)
We have investigated relationships between patients' backgrounds and isolates from urinary tract infections in reference to various conditions, such as sexes, age distribution by sex, species of causative organisms by sex, age distribution according to species and types of infections, species and infections before and after treatment with antibacterial(More)
Sensitivities to antimicrobial agents of Escherichia coli, Klebsiella spp., Citrobacter spp., Enterobacter spp., Proteus spp., Pseudomonas aeruginosa and Serratia marcescens isolated from infected patients were evaluated and compared according to the types of their infections, i.e., simple and complicated urinary tract infections with or without indwelling(More)
The clinical efficacy of norfloxacin (NFLX) was evaluated in 74 patients having chronic prostatitis with the subjective symptoms suggesting the inflammations of prostate and more than five white bloodcells (WBCs)/hpf in their prostatic secretions (EPS). Of these, gram negative rods with greater than or equal to 10(3)CFU/ml (GNR group) were isolated from the(More)
The results of determinations of sensitivities of bacterial strains to various antibiotics are summarized as follows: 1. Against Escherichia coli, ofloxacin (OFLX) showed the strongest activity among oral antibacterial and antibiotic agents. Its MIC90 was below 0.10 micrograms/ml. The next strongest activity was found in mecillinam (MPC), cefaclor (CCL) and(More)