Medicine News

Study: SARS-CoV-2 Coronavirus Spreads Quickly, Sometimes Before People Have Symptoms

This transmission electron microscope image shows SARS-CoV-2, also known as 2019-nCoV, isolated from a patient in the U.S. Virus particles are shown emerging from the surface of cells cultured in the lab. The spikes on the outer edge of the virus particles give coronaviruses their name, crown-like. Image credit: NIAID.
Mar 13, 2020 by News Staff

An international team of scientists from the United States, France, China and Hong Kong was able to identify how quickly SARS-CoV-2, a novel coronavirus that causes COVID-19 disease, can spread, a factor that may help public health officials in their efforts at containment. They found that time between cases in a chain of transmission is less than a week and that more than 10% of patients are infected by somebody who has the virus but does not yet...

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Existing data from known coronaviruses can be used to predict which parts of SARS-CoV-2 are capable of activating the human immune system. Image credit: Grifoni et al.

Researchers Identify Targets for Effective Immune Responses to SARS-CoV-2 Coronavirus

Mar 12, 2020 by News Staff

Scientists from La Jolla Institute for Immunology, the J. Craig Venter Institute and the University of California, San Diego used existing data from known...

This scanning electron microscope image shows SARS-CoV-2 (yellow) isolated from a patient in the U.S., emerging from the surface of cells (blue/pink) cultured in the lab. Image credit: NIAID.

COVID-19 Has Median Incubation Period of 5.1 Days: Study

Mar 11, 2020 by News Staff

An analysis of data on infections from the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a novel human coronavirus that causes the respiratory...

Scanning electromicrograph of an HIV-infected T cell. Image credit: NIAID.

Second Patient Cured of HIV, Researchers Say

Mar 11, 2020 by News Staff

A study of the ‘London patient’ — the second HIV patient to undergo stem cell transplantation from donors with a HIV-resistant gene — finds...

This transmission electron microscope image shows SARS-CoV-2, also known as 2019-nCoV, the virus that causes COVID-19, isolated from a patient in the U.S., emerging from the surface of cells cultured in the lab. Image credit: NIAID-RML.

Chest CT Scans Reliable for COVID-19 Diagnosis, Limited for Identification of Specific Viruses

Mar 5, 2020 by News Staff

Radiologists from Wuhan, China found that chest CT had a low rate of missed diagnosis of COVID-19 (3.9%, 2/51) and may be useful as a standard method for...

Nobiletin is a molecule found in sweet oranges and tangerines. Image credit: Gerhard Gellinger.

Citrus Flavonoid Nobiletin Could Reduce Obesity, Reverse Its Negative Side-Effects

Mar 5, 2020 by News Staff

Mice fed a high-fat, high-cholesterol diet that were also given nobiletin, a flavonoid found in sweet oranges and tangerines, were noticeably leaner and...

Chest CT Has High Sensitivity for Diagnosis of COVID-19, Scientists Say

Mar 4, 2020 by News Staff

Chest CT, a routine imaging tool for pneumonia diagnosis, had higher sensitivity for diagnosis of the COVID-19 coronavirus disease as compared with initial...

Colorized transmission electron micrograph of SARS-CoV particles (orange) found near the periphery of an infected cell (green). Image credit: NIAID Integrated Research Facility.

Antiviral Drug Remdesivir Inhibits RNA Polymerase in MERS and SARS Coronaviruses: Study

Feb 27, 2020 by News Staff

Researchers from the University of Alberta and Gilead Sciences, Inc. have discovered that the experimental antiviral drug remdesivir is effective in treating...

Review of over 11 billion person-years of incidence data revealed no benefit associated with performing adult booster vaccinations against tetanus or diphtheria. Image credit: Katja Fuhlert.

Study: Adults Don’t Need Tetanus or Diphtheria Booster Shots If Fully Vaccinated as Children

Feb 26, 2020 by News Staff

According to a paper published in the journal Clinical Infectious Diseases, adults do not need tetanus or diphtheria boosters if they’ve already completed...

Olive oil is a major component of the Mediterranean diet. Image credit: Ulrike Leone.

Olive Oil-Rich Diet May Extend Lifespan, Help Mitigate Aging-Related Diseases

Feb 25, 2020 by News Staff

Olive oil in the Mediterranean diet may hold the key to improving lifespan and mitigating aging-related diseases, according to a new study by researchers...

This transmission electron microscope image shows SARS-CoV-2, also known as 2019-nCoV, the virus that causes COVID-19, isolated from a patient in the U.S., emerging from the surface of cells cultured in the lab. Image credit: NIAID-RML.

Scientists Produce 3D Map of SARS-CoV-2’s Spike Protein

Feb 20, 2020 by News Staff

Researchers have made a breakthrough toward developing a vaccine for the SARS-CoV-2 coronavirus, also known as 2019-nCoV, by creating the first 3D atomic...

de Wit et al show that remdesivir is a promising antiviral treatment against MERS that could be considered for implementation in clinical trials. This colorized scanning electron micrograph shows MERS virus particles (blue) both budding and attached to the surface of infected VERO E6 cells (yellow). Image credit: NIAID.

Remdesivir: Experimental Antiviral Drug Shows Promise against MERS Virus in Rhesus Macaques

Feb 19, 2020 by News Staff

Middle East respiratory syndrome coronavirus (MERS-CoV) is closely related to the COVID-19 coronavirus (also known as SARS-CoV-2 and 2019-nCoV) that has...

According to Kathrin Andrich et al, the Epigallocatechin gallate -- a compound found in green tea leaves -- may be of particular benefit to patients struggling with multiple myeloma and amyloidosis. Image credit: Ascyrafft Adnan.

Green Tea Extract Plus Exercise May Mitigate Obesity-Related Fatty Liver Disease, Study Shows

Feb 18, 2020 by News Staff

The combination of decaffeinated green tea extract and voluntary exercise can effectively mitigate nonalcoholic fatty liver disease, suggests a new study...

World Health Organization Underestimates Spread of COVID-19 Coronavirus, New Review Says

Feb 17, 2020 by News Staff

In a review of previous studies, a team of researchers from Sweden, Germany and China found the average reproduction number (R0) for the COVID-19 coronavirus...

Immune cells count their neighbors before deciding whether or not the immune system should kick into high gear. Image credit: Northwestern University.

Immune Cells Congregate and Coordinate with Neighbors to Decide Whether to React: Study

Feb 13, 2020 by News Staff

Scientists have long known that immune cells migrate to the site of an infection, which individuals experience as inflammation. Now, a team of researchers...

TEM image of Bacillus subtilis grown in corbomycin shows a characteristic twisted phenotype; red triangles mark sites of aberrant-division septa formation, thickened cell wall and granular formations. Image credit: Culp et al, doi: 10.1038/s41586-020-1990-9.

Two Glycopeptide Antibiotics Have Never-Before-Seen Way to Kill Bacteria

Feb 13, 2020 by News Staff

Two members of a new class of glycopeptide antibiotics — the previously known glycopeptide antibiotic complestatin and a newly-discovered compound...

The smart insulin patch. Image credit: Zhen Gu Lab, University of California, Los Angeles.

Bioengineers Testing Smart Insulin Patch

Feb 12, 2020 by News Staff

A team of U.S. bioengineers has developed a glucose-responsive insulin patch that could one day monitor and manage glucose levels in people with diabetes....

This illustration reveals ultrastructural morphology exhibited by the COVID-19 coronavirus. Note the spikes that adorn the outer surface of the virus, which impart the look of a corona surrounding the virion, when viewed electron microscopically. Image credit: CDC.

Human Coronaviruses Can Remain Infectious on Inanimate Surfaces For Up To Nine Days, New Review Says

Feb 11, 2020 by News Staff

According to a review of previous studies, published online February 6, 2020 in the Journal of Hospital Infection, human coronaviruses such as Severe Acute...

Transmission electron microscopic image of an isolate from the first U.S. case of 2019-nCoV. The spherical extracellular viral particles contain cross-sections through the viral genome, seen as black dots. Image credit: C.S. Goldsmith & A. Tamin / CDC.

Steroids Should Be Avoided in Treatment of 2019-nCoV Coronavirus, Scientists Say

Feb 10, 2020 by News Staff

A team of researchers from the University of Edinburgh Centre for Inflammation Research, the Queen’s Medical Research Institute Edinburgh, and Roslin...

German Researchers Find 2019-nCoV Coronavirus in Nose, Throat of Patients with Mild Symptoms

Feb 10, 2020 by News Staff

Even patients with mild symptoms are capable of transmitting the 2019-nCoV coronavirus, according to a team of scientists from the Charité-Universitätsmedizin...

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