Until gram stain results are available, antibiotic regimens should be based on the presumptive source of the infection.
A presumptive source of infection may be identified among household members or close personal contacts in about 20% of casesD.
For comparison, the congener profile of DE-71, an important commercial penta-BDE mixture and the presumptive source of PBDEs in human blood, is also shown.
A confirmed or presumptive source of infection was identified among household members or close personal contacts of 16 (21%) case-patients.
Among this series of US-acquired cysticercosis a probable source (T. solium tapeworm carrier) was identified for 6 cases and presumptive source (close contacts from disease-endemic areas) for 10.
The presumptive source of virus introduction was contact between wild mice and colony mice, and the outbreak spread among facilities when mice were transported for use as breeding stock.
Standard cultures in biological samples guided by the presumptive source of the septic insult were performed to assess the presence of bacterial and fungal infection [ 13], along with detection of a urinary antigen test for Legionella pneumophila or Streptococcus pneumoniae.
This transient plasmablast population is highly enriched for B cells actively secreting antibody against the immunogen [ 14, 17] and may contain precursors to the long-lived CD138+ mature plasma cells that reside in the bone marrow and are the presumptive source of serum antibodies present months and years following vaccination [ 15, 18].
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The AGC [ 28] acts as a repository for presumptive full-length sequences from multiple sources, including: AESTdb, sequences parsed from existing databases (e.g. NCBI), and sequences derived from the community at large.
