The objective of this study was to identify group B streptococcus (GBS) colonization rates and compare detection efficiency of selective versus non-selective culture media and anorectal versus vaginal cultures in women with preterm labor and preterm-premature rupture of membranes (PROM). A prospective cohort study of 203 women was performed. Two vaginal and two anorectal samples from each woman...

The rate of listeria abortion in Tehran was investigated. Abortion samples (200) were cold enriched at 4°C and subcultured on selective culture media containing acriflavin, nalidixic acid and potassium thiocyanate. Sera of patients were tested serologically (IF method) for screening, and results were confirmed by culturing the positive samples. Antibody against L. mollocytogelles was obtain...

Plating on solid media is the standard technique used in most laboratories for the isolation of Helicobacter pylori from gastric biopsies. Recently, various selective media were developed for this purpose. We compared and evaluated three selective media, Skirrow's, Dent's CP, and modified Glupczynski's Brussels campylobacter charcoal media, and chocolate agar medium for the isolation of H. pylo...

AIMS To evaluate the sensitivity and specificity of two selective media for the isolation of Burkholderia cepacia from sputum specimens in patients with cystic fibrosis (CF). METHODS In total, 149 expectorated sputum specimens from 113 patients with CF (32 cepacia colonised patients and 81 non-cepacia colonised patients) attending three CF centres were examined for the presence of B cepacia o...

The thin agar layer (TAL) method of Kang and Fung was used to enumerate acid-injured foodborne pathogens. This method involves overlaying 14 ml of nonselective medium (tryptic soy agar [TSA]) onto a prepoured and solidified pathogen-specific, selective medium in a petri dish. After surface plating, injured cells resuscitated and grew on TSA during the first few hours of incubation; then, the se...

The endoscope allows for better inspection for cholesteatoma in cases with chronic otitis media, better access to selective epitympanic poor ventilation and secondary selective chronic otitis media, better visualization of anterior poor ventilation of the mesotympanum (reestablishing adequate ventilation to the mesotympanum), better visualization and reconstruction of anterior tympanic membrane...

Several antimicrobial agents used in selective media for the isolation of Arcobacter were found to be inhibitory to strains belonging to this genus. All three species tested were susceptible to colistin and rifampin at concentrations used in selective media. Arcobacter skirrowii was the most susceptible species. 5-Fluorouracil, novobiocin, trimethoprim, and teicoplanin or vancomycin were found ...

The present study was conducted to compare Campylobacter counts obtained by three selective media: modified charcoal cefoperazonedeoxycholate agar (mCCDA), Campy Food agar (CFA), and a novel agar RAPID' Campylobacter agar. Analysis of 12 artificially and 36 naturally contaminated samples indicated no significant differences in Campylobacter counts obtained with all three selective media. Lin's ...

In this paper we present a novel selective retransmission scheme, based on congestion control algorithm. Our method efficient in narrowband networks for multimedia applications which demand higher bandwidth. Multimedia applications are becoming increasingly popular in IP networks, while in mobile networks the limited bandwidth and the higher error rate arise in spite of its popularity. These ar...