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Microbiology

Image: Base stacking adhesive forces versus OPTIMuS actuators. (a) The interface makeup between the ring and frameR shown as a cross-section of OPTIMuS. It can be modified with coaxial blunt ends (BE) to create high adhesion or no blunt ends to minimize adhesion. (b) FRET output of all blunt ends (All BE) versus no blunt ends (No BE) OPTIMuS upon the addition of different force domains (****Indicates P ≤ 0.0001; *Indicates P ≤ 0.05) (Photo courtesy of Scientific Reports).

Novel Programmable DNA Nanosystem Designed for Low Cost Molecular Detection

Based in a novel way on the self-assembly forces between DNA complementary strands, researcher have developed programmable nanosystem that has now been applied in a proof-of-principle study on Ebola virus diagnosis potential. More...
05 Jul 2016
Image: The 7500 Fast Dx Real-Time polymerase chain reaction (rt-PCR) instrument (Photo courtesy of Applied Biosystems).

Multiplex Molecular Test Developed for Three Arboviruses

Clinical manifestations of Zika virus, chikungunya virus and dengue virus infections can be similar. To improve virus detection, streamline molecular workflow, and decrease test costs, a multiplex real-time reverse transcription polymerase chain reaction (rt-PCR) for these viruses has been developed and evaluated. More...
30 Jun 2016
Image: The Aptima HIV-1 RNA qualitative assay (Photo courtesy of Hologic).

Earliest Stage of Human Immunodeficiency Virus Infection Analyzed

The first days after Human Immunodeficiency Virus infection are very important because sexual partners are exposed to extremely high risks of infection due to the subsequent high viral load in the infected person. More...
29 Jun 2016
Image: A photomicrograph of a blood smear containing both immature and mature trophozoites of the Plasmodium vivax parasite (Photo courtesy of Dr. Mae Melvin / CDC).

Sharp Increase in Benign Tertian Malaria Observed in Migrants

Since 2014, the number of reported malaria cases of malaria in Europe have almost doubled compared to the previous years and clinicians are observing growing numbers of Plasmodium vivax infections, predominantly in refugees from Eritrea. More...
29 Jun 2016
Image: A colorized scanning electron micrograph (SEM) showing a number of Gram-negative Escherichia coli bacteria of the strain O157:H7 (Photo courtesy of the CDC).

Nanoscale Biosensor for Detection of Pathogenic Bacteria under Field Conditions

A team of bioengineers used nanoscale technology to develop a simple, portable biosensor system for detection of pathogenic bacteria – such as the diarrhea-causing Escherichia coli (E. coli) 0157:H7 – under field conditions. More...
27 Jun 2016
Image: The QP2010 Plus gas chromatography-mass spectrometry analyzer (Photo courtesy of Shimadzu).

Breath Analysis Aims To Reduce Unnecessary Antibiotic Prescriptions

A number of multiresistant pathogens including Acinetobacter baumannii place a heavy burden on ventilator-associated pneumonia (VAP) patients in intensive care units (ICU), and it is critically important to differentiate between bacterial infection and colonization to avoid prescribing unnecessary antibiotics. More...
23 Jun 2016
Image: A colorized scanning electron micrograph (SEM) of a strain of Staphylococcus aureus bacteria enmeshed within the pseudopodia of a red-colored human white blood cell (WBC) (Photo courtesy of the National Institute of Allergy and Infectious Diseases).

Glucocorticoid Use Associated with Serious Bacterial Blood Infection Risk

The risk of life-threatening blood infections by Staphylococcus aureus bacteria is more than doubled in users of systemic glucocorticoids compared with non-users and the risk escalates with increasing dose. More...
21 Jun 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.