Bacterial counts will be summarised into purity of growth (pure, predominant, mixed 2 organisms & >2 mixed organisms).
Sixteen patients admitted to a medical ICU between March 2005 and December 2005 who grew multiple-resistant strains of Pseudomonas aeruginosa (three patients), Acinetobacter baumanii (eight patients), Klebsiella pneumoniae (one patient) or mixed organisms (four patients) were included in the study.
Gram positive bacteria accounted for 64.7% (123) of all peritonitis episodes, Gram negative bacteria 21.1% (40), culture negative peritonitis (CNS) 9.5%, fungal peritonitis 2.6% and mixed organism peritonitis in 2.1%.
Speculatively, Cronobacter possessing a gene promoting resistance to the action of albicidin adds further evidence for a plant-associated evolutionary history, as well as, the impartation of a competitive edge to Cronobacter survival in a mixed organism environment where competition is controlled through the action of bacteriocin expression.
In a mixed sample, organisms with thick cell walls may yield relatively little DNA, leading to an under-representation of that organism in the final sequencing library [22].
Evidence suggests that Oropharyngeal Candidiasis, found frequently in patients with immunodeficiency, present with mixed Candida organisms and are more difficult to treat than those solely due to C. albicans.
There is always the possibility that mixed Helicobacter organisms were present that had identical sequences over the 400 bp 16S rDNA region analysed.
In this study, the 20 false negatives obtained on BA grew as small colonies on STRB or were mixed with organisms that had large β-hemolytic zones.
All nonadult samples are from mixed sex organisms in unknown ratios; adult female samples are from mated and virgin flies in unknown ratios.
In CBP an organism or a mixed culture of organisms produces enzymes for hydrolysis of cellulose and hemicellulose in lignocellulosic biomass and ferments the C5 and C6 sugars into ethanol or other valuable products without addition of cellulolytic or hemicellulolytic enzymes.
In the clinical diagnostic setting, metagenomics (the study of genomes from mixed communities of organisms) may eventually replace organism identification, virulence profiling, and some resistance testing, and it may be possible to use this data stream for a variety of public health purposes, including surveillance.
