Last week we shared the Clinical Case File of a patient with persistent dysuria and asked our readers to determine the cause of the symptom. Here are the poll results: Adenovirus (4%, 7 Votes) Herpes simplex virus (9%, 21 Votes)…
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Read the case study below and then use your microbiology expertise to determine which pathogen is causing the symptoms. The results will be shared on August 1, 2019. Good luck! Background: Determining which sexually transmitted infection (STI) is causing uncomfortable…
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In 2016, two biologists from Indiana University estimated that there are about a trillion species of bacteria on earth.1 With so many choices, how can a teacher select the best strains for her microbiology class? Below are a few tips…
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Q: How frequently should I test targets for my molecular multiplex testing assays? A: This is a common question for inspectors, vendors, and laboratorians. Unfortunately, there are no cut-and-dried answers, but there are some best practices that you can apply…
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Dear Stanley, Lately, our lab has been experiencing PCR results that don’t fit with what is expected. We will see occasional positive results in a negative sample. I think the issue could be related to contamination in the lab, but…
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Cannabis has become a widely accepted form of medicine for patients across the United States. These patients, many of whom are immunocompromised, rely on testing laboratories to ensure the safety of the products they use. The lack of consistent and…
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Q: When should I validate or recalibrate my rapid diagnostic system? A: With all the rules and regulations, it’s hard to know when a diagnostic system validation or recalibration is required. For most multiplex PCR testing instruments, the requirements are…
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Almost nine years ago, the Food and Drug Administration (FDA) held a public meeting to discuss the oversight of laboratory developed tests (LDTs). As LDTs became more complex and integral to clinical diagnostics, the agency considered a risk-based approach for…
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Last week, we asked you to determine which common food-borne pathogen, Escherichia coli or Salmonella spp., was causing the enteric infection described in our latest Clinical Case File. The results are in, and we’re proud to share we have some…
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