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Microbiology

Image: The protozoan parasite Dientamoeba fragilis from a stool sample. Trophozoites exhibit an amoeba-like morphology and are often bi-nucleated (Photo courtesy of Tulane University).

Laboratory Diagnosis Required for Treating Patients with Persistent Diarrhea

Persistent diarrhea, which is diarrhea that lasts at least 14 days, is an illness typically caused by parasites or bacteria and requires accurate diagnosis in order to determine the proper etiologic diagnosis which is important for appropriate therapeutic management. More...
13 Jul 2016
Image: Handheld- and mobile phone-based microscopes: A) The Newton Nm1-600 XY portable field microscope B) The reversed-lens CellScope attached to an iPhone 5s (Photo courtesy of University Health Network).

Mobile Phone-Based Microscopes Diagnose Intestinal Parasites

Handheld, mobile phone-based microscopes can be used in developing countries after minimal training of community laboratory technicians to diagnose intestinal parasites quickly and accurately. More...
13 Jul 2016
Image: The production of ImmuStick, showing the application of immune receptors onto the test strip (Photo courtesy of Fraunhofer IGB).

New Technique May Provide Low-Cost Pathogen Testing

Researchers are developing a rapid pyrogen-detection stick-test for detecting presence of pathogens and allergens. The test has potential applications in clinical diagnostics as well as in food, pharmaceutical, and hospital environment testing. More...
12 Jul 2016
Image: An adult deer tick Ixodes scapularis. Lyme disease is caused by Borrelia bacteria and transmitted to humans upon the bite of infected ticks of the genus Ixodes (Photo courtesy of Scott Bauer, Agricultural Research Service of USDA / Wikimedia).

Likely Flaws Uncovered for LM-Method for Lyme Disease Detection

According to a new study, the recently developed modified microscopy technique “LM-method” of examining blood samples to help diagnose Lyme disease (and babesiosis) – is unable to distinguish infected patients from healthy controls, yielding many false-positive results. More...
12 Jul 2016
Image: A photomicrograph of auramine-rhodamine stained Mycobacterium tuberculosis (Photo courtesy of Dr. T.V. Rao, MD).

Lung Pathogens Detected Faster by Molecular-Based Method

The genus Mycobacterium is separated into the pathogenic species Mycobacterium tuberculosis complex (MTB), Mycobacterium leprae, and Mycobacterium ulcerans, and various nontuberculous mycobacteria (NTM). More...
07 Jul 2016
Image: An adult Opisthorchis viverrini or Southeast Asian liver fluke stained with carmine (Photo courtesy of the CDC).

Unsuspected Bacterial Link to Bile Duct Cancer Discovered

Bacteria in the bile duct have been identified as a potential risk factor in the development of bile duct cancer, or Cholangiocarcinoma, a rare but aggressive form of cancer with symptoms that do not present themselves at the early stages. More...
06 Jul 2016
Image: The Rapid Rabies Ag Test Kit is a chromatographic immunoassay for the qualitative detection of Rabies virus antigen (Photo courtesy of Creative Diagnostics).

Evaluation of Rapid Rabies Tests Reveals Problems with Accuracy

If humans bitten by a rabid animal are treated quickly, the disease can usually be prevented but such post-exposure prophylaxis is expensive and should be reserved for bites from animals with confirmed infection, but testing dogs for rabies in resource-poor settings is challenging. More...
06 Jul 2016
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The LabMedica Microbiology channel provides the latest news in the fields of epidemiology, bacteriology, virology, and parasitology, all viewed from the unique perspective of Laboratory Medicine.