The diagnosis of IE was based on the modified Duke's criteria [36] that include clinical data, blood cultures, immunohistochemical analyses of cardiac valves and molecular detection of organisms in blood and cardiac valves.
Additionally we have shown that the detection of organisms using FISH and conventional culture is significantly dependant on microbial abundance as measured using molecular quantification.
For the detection of organism viability and material control, tryptic soy agar without neutralizer was used as a solid medium.
The frequent use of antimicrobials prior to blood culture may have hampered the detection of organisms susceptible to commonly used antimicrobials, including pneumococci, and thus the study probably underestimates the incidence of bloodstream infection.
CIDTs have the potential to improve estimates of disease burden because 1) they may be more sensitive than culture, 2) their relative ease of use may increase the number of patients tested, 3) they may enable detection of organisms for which there are currently no practical laboratory tests, and 4) they may increase the ability to detect polymicrobial infections.
The sensitivity of PCR often precludes the need for isolation and culture, thus making it ideal for the rapid detection of organisms involved in acute infections.
The implementation of the CFC database could have a significant impact on the monitoring of respiratory infections, the prevention of exacerbations, the detection of emerging organisms, and the adequacy of control strategies for lung infections in CF patients.
Initial experiments indicated the assay had a limit of detection of 10 100 organisms and was specific for T pallidum species.
The detection of organisms that correspond to the most abundant OTUs requires minimal sampling, whereas the recovery of sequences from minor components demands surveys that are many orders of magnitude larger than those reported in the literature.
