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Microbiology

Image: This digitally colorized scanning electron microscopic (SEM) picture depicts four, yellow colored, Group A Streptococcus (GAS), Streptococcus pyogenes bacteria, which were atop the surface of a human white blood cell (WBC), known as a neutrophil (Photo courtesy of the US National Institute of Allergy and Infectious Diseases).

New Strain of Bacteria Causes Scarlet Fever

Scarlet fever is a classic exanthem of childhood caused by the bacterium Streptococcus pyogenes (group A streptococcus). Symptoms, which affect young children, include a high temperature, sore throat, and a pink-red rash that feels like sandpaper. More...
26 Sep 2019
Image: A scanning electron micrograph (SEM) of a human neutrophil ingesting MRSA (Photo courtesy of the U.S. National Institute of Allergy and Infectious Diseases).

Mutation Found Determines Nature of Host Response to MRSA Infection

A recent paper described the genetic factors that determine why some individuals develop chronic methicillin-resistant Staphylococcus aureus (MRSA) infections while others develop infections that resolve relatively quickly. More...
22 Sep 2019
Image: The infective promastigote form of the Leishmania parasite is transmitted by sandflies (Photo courtesy of Wikimedia Commons).

Unusual Sugar Facilitates Long-Term Survival of Leishmania Parasites

A team of British and Australian parasitologists has determined that the Leishmania parasite is able to survive for long periods of time in human immune cells due to its ability to synthesize the non-canonical carbohydrate reserve, mannogen, which is composed of beta-1,2-mannan oligosaccharides. More...
22 Sep 2019

Differences in Gut Bacteria May Predispose to Heart Attacks

Heart attacks can occur when a person has developed heart disease. A key feature of heart disease is the buildup of plaque in the arteries. Plaque is made up of fat, calcium, and other substances. More...
19 Sep 2019
Image: The MagPlex Multiplexing Microspheres (Photo courtesy of Luminex).

Multiplex Microsphere Immunoassay Identifies Three Flavivirus Infections

The explosive spread of Zika virus (ZIKV) and associated complications in flavivirus-endemic regions underscore the need for sensitive and specific serodiagnostic tests to distinguish ZIKV, dengue virus (DENV) and other flavivirus infections. More...
19 Sep 2019
Image: This infographic illustrates the connection between the brain, central nervous system and other organs and how they interact with a person\'s gut microbes to show different patterns from people with high blood pressure plus depression; high blood pressure without depression; depression with healthy blood pressure; or healthy subjects without depression or high blood pressure (Photo courtesy of Professor Bruce R. Stevens, PhD).

Gut Bacteria Linked to High Blood Pressure and Depression

The microbiome is the genetic material of all the microbes, bacteria, fungi, protozoa and viruses that live on and inside the human body. The number of genes in all the microbes in one person's microbiome is 200 times the number of genes in the human genome. More...
17 Sep 2019
Image: Zika virus particles (red) shown in African green monkey kidney cells (Photo courtesy of the [U.S.] National Institute of Allergy and Infectious Diseases).

Zika Virus Test Kit Receives American Marketing Approval

A blood test designed to confirm diagnosis of Zika virus infection has been granted 510(k) marketing approval that allows it to be sold in the United States. More...
16 Sep 2019
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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.
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