background :  science the discovery of antibiotic, the incidence of antibiotic resistance has been inevitable. although there has been many study in these area but problem still exists. the aim of this research was to study the serotyping and multiple antibiotic resistance patterns of shigella sonnei isolated from diarrheal stool of children.   methods :  the stool samples of children from zero...

introduction: preventing and starting early treatment of infections in patients whose immunity system is weak due to malignancies like leukemia can reduce mortality. this study aimed to determine microbial and antibiotic resistance patterns in clinical samples of patients with acute leukemia to start early treatment before the results of clinical tests are known. subjects and methods: in this c...

background and objectives: this study was designed as a retrospective study on urine samples during three years in shaheed mostafa khomeini hospital to determine demographic characteristics of patients with urinary tract infection (uti), microbial etiology, and susceptibility of isolated bacteria to antibiotics. materials and methods: all urines fulfilling the criteria for significant bacteriur...

In recent years, the absence of acquired antimicrobial resistance has become an important criterion to evaluate the biosafety of lactobacilli used as industrial starter or probiotic cultures. At present, however, standards for susceptibility testing of Lactobacillus strains or approved guidelines for interpreting the test results are not available. Hence, this study was carried out to contribut...

OBJECTIVE To describe antimicrobial susceptibility testing practices of veterinary diagnostic laboratories in the United States and evaluate the feasibility of collating this information for the purpose of monitoring antimicrobial resistance in bacterial isolates from animals. DESIGN Cross-sectional study. PROCEDURES A questionnaire was mailed to veterinary diagnostic laboratories throughou...

A rapid method of microbial susceptibility testing is described. Bacterial growth is measured by determining the incorporation of (14)C-tryptophan into cellular protein in the presence of antimicrobial drugs.

Inoculum size and incubation time were varied during broth microdilution testing of the susceptibilities of 35 strains of lactic acid bacteria to six antibiotics. An increase in either parameter resulted in elevated MICs for all species. An inoculum of 3 x 10(5) CFU/ml is recommended to assess the antibiotic susceptibilities of these bacteria by using broth microdilution.