Evaluation of MiSeq for Microbial Identification in Specimens

Background: Researchers are testing a new way to find out what causes infections in people in hospitals. Current techniques use chemical or biological tests on a person s samples. Samples are blood, tissue, stool, saliva, urine, etc. Researchers are testing new techniques that use a device called MiSeq. It can sequence all of the DNA (genetic material) in a sample. This may show microorganisms, such as bacteria, fungi, and viruses that cause infection. Researchers want to know if the new test works as well or better than current tests. They will do this by looking at about 250 samples. Objective: To test if MiSeq works as well as or better than current tests to identify microorganisms that cause infection. Eligibility: NIH patients whose samples have been sent to the Microbiology Service s lab for routine microbiologic testing. Design: Participants will consent to have samples they gave as part of their routine medical care used in the study. For those under age 18, a parent or legal guardian will consent.