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U.S. Ebola researchers plead for access to virus samples

Image: A transmission electron micrograph shows Ebola virus particles in this undated handout image released by the U.S. Army Medical Research Institute of Infectious Diseases (USAMRIID) in Fredrick, Maryland. Credit: Reuters/USAMRIID/Handout

reuters.com - November 5th 2014 - Julie Steenhuysen

Scientists across the United States say they cannot obtain samples of Ebola, complicating efforts to understand how the virus is mutating and develop new drugs, vaccines and diagnostics.

The problems reflect growing caution by regulators and transport companies about handling Ebola as well as the limited resources of West African countries which are struggling to help thousands of infected citizens.

Ten scientists from eight major research institutions contacted by Reuters reported they were unable to get Ebola samples in recent months.

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Canada contributes more money, but no medical workers in Ebola fight

TORONTO GLOBE AND MAIL                               Nov. 3, 2014
By Kelly Grant
Canada is spending another $30.5-million to fight Ebola, but Ottawa is still not answering pleas from international aid organizations for medical personnel to care for the ill in West Africa.

The bulk of the money announced on Monday – $23.5-million – will be spent on testing a Canadian vaccine and an experimental therapy, ZMapp, both of which were developed largely at the National Microbiology Lab in Winnipeg....

A lab technician at the National Microbiology Lab in Winnipeg, Manitoba November 3, 2014.
(LYLE STAFFORD/THE CANADIAN PRESS)

Canada has so far dispatched two mobile laboratories with rotating teams of scientists to rapidly diagnose or rule out Ebola in Sierra Leone.

But Ottawa has been reluctant to send medical staff to West Africa because the government cannot guarantee they could be airlifted out if they fall ill.

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New England researchers help shape the fight on Ebola

THE BOSTON GLOBE                                  Nov. 3, 2014

By Carolyn Y. Johnson

Northeastern University researchers use computers to simulate 20 million virtual Ebola outbreaks each week. Yale scientists are building three models that project the spread of the deadly disease. And a team at Boston Children’s Hospital is combing through data to gauge whether medical interventions are working.

....  they are providing a constant stream of evidence that is beginning to reveal the weak spots of the epidemic. For example, scientists’ models are beginning to identify basic patterns of who is being infected and when and how Ebola is being spread, which could help identify the most meaningful ways to intervene.

...According to their model, isolating three-quarters of the patients within the first four days that they show symptoms would help eliminate the disease.

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http://www.bostonglobe.com/metro/2014/11/02/ebola-disease-modelers-new-england-help-predict-future-spread-best-strategies/LZHSEGlInJs6SflLWW0yaP/story.html

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Researchers Study Ebola Link to Gene in Rare Disease

WALL STREET JOURNAL                             Nov 3, 2014

By Amy Dockser Marcus

In the search for answers about Ebola, researchers are starting to look at an unexpected group of people: parents of children who have the rare but fatal genetic disease Niemann-Pick Type C.

Blood and tissue samples from Hugh and Chris Hempel of Reno, Nev., whose children have a rare disease, may help in ongoing Ebola research. Hempel family

The intersection between research in Ebola and NPC disease was surprising, and came after two scientific papers were published in 2011 demonstrating that a protein made by the same gene related to NPC disease is essential for Ebola infection.

Ebola uses the so-called NPC1 protein made by the gene to get into the cell and replicate the virus.

Now, research suggests that the gene that causes NPC disease may also offer protection against Ebola.

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http://online.wsj.com/articles/researchers-study-ebola-link-to-gene-in-rare-disease-1414965218

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Ebola-carrying bats may be heroes as well as villains

REUTERS                                                                                  NOV. 2, 014

By Ben Hirschler

LONDON - Bats are living up to their frightening reputation in the world's worst Ebola outbreak as prime suspects for spreading the deadly virus to humans, but scientists believe they may also shed valuable light on fighting infection.

Fruit bats are seen for sale at a food market in Brazzavile, Republic of Congo, in this file photograph dated December 15, 2005. REUTERS/Jiro Ose/Files

Bats can carry more than 100 different viruses, including Ebola, rabies and severe acute respiratory syndrome (SARS), without becoming sick themselves.

While that makes them a fearsome reservoir of disease, especially in the forests of Africa where they migrate vast distances, it also opens the intriguing possibility that scientists might learn their trick in keeping killers like Ebola at bay.

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What We Don’t Know About Ebola

Overview of what still needs to be learned about the Ebola virus

Research studies have suggested at least three potential paths through which the Ebola virus can invade tissues. Credit Photograph by the C.D.C. via Getty Images

THE NEW YORKER                                      Nov. 1, 2014

By

...there are still serious gaps in what we know about the biology of Ebola, and that ignorance inhibits us from preventing future outbreaks and reducing death rates that still exceed seventy per cent. We don’t know enough about the biology of Ebola to bring the outbreak under full control, or to neutralize the virus once the outbreak is contained. Between on-the-ground efforts and advances in science, we need a balanced approach.

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CDC Removed Info On Coughing And Sneezing From Ebola Q&A (UPDATE)

TWO ARTICLES ON THE TRANSMISSION OF EBOLA AND THE LONGIVITY OF THE VIRUS ON VARIOUS SURFACES  (Scroll down)

THE HUFFINGTON POST                      OCT. 31, 2014
By Arhur Delaney

WASHINGTON -- The Centers for Disease Control and Prevention has quietly removed some Ebola information from its website. The changes follow claims from news outlets and conservative blogs that the agency hasn't been forthcoming about how the virus spreads, but it was not clear on Thursday afternoon whether the removal was related to the reports.

The New York Post reported Tuesday that the agency "admitted" Ebola can be contracted through casual contact with a doorknob, seemingly contrary to the CDC's insistence that Ebola is only transmissible through direct contact with bodily fluids from a person sick with the disease. The Post cited a page on the CDC's website that said Ebola spreads through droplets that can travel short distances when a sick person coughs or sneezes....

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The Ebola questions

Scientists know a lot about the virus that causes Ebola — but there are many puzzles that they have yet to solve.

NATURE SCIENCE International Weekly Journal of Science                                   Oct. 29, 2014

By Erika Check Hayden

Scientists know a lot about the virus that causes Ebola — but there are many puzzles that they have yet to solve.

An Ebola virus particle from the 2014 outbreak.

To much of the world, the virus behind the devastating Ebola outbreak in Africa seems to have stormed out of nowhere. But Leslie Lobel thinks we should have seen it coming.

In 2012, Lobel and a team of researchers spent six months in Uganda studying the Ebola virus and related viruses. Over the course of their stay, these pathogens caused at least four separate outbreaks of disease in central Africa, affecting more than 100 people. To Lobel, a virologist at Ben-Gurion University of the Negev in Beer-Sheva, Israel, the outbreaks felt like the small tremors that can precede a major earthquake. “We all said, something is going on here; something big is going to happen,” he says.

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Genes Influence How Mice React to Ebola, Study Says In ‘Significant Advance’

NEW YORK TIMES                        Oct. 30, 2014

By Gina Kolata

Some people exposed to the Ebola virus quickly sicken and die. Others become gravely ill but recover, while still others only react mildly or are thought to be resistant to the virus. Now researchers working with mice have found that these laboratory animals, too, can have a range of responses to Ebola, and that in mice, the responses are determined by differences in genes.

Researchers at the University of Washington have been studying the Ebola virus in mice, and have found that the effects of the virus may be determined by genes.Video and photo by University of Washington.

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Swiss Agency Approves Trial for Ebola Vaccine

ASSOCIATED PRESS                                 Oct. 28, 2014
  GENEVA-- The Swiss agency that regulates new drugs said Tuesday it has approved an application for a clinical trial with an experimental Ebola vaccine at the Lausanne University Hospital.

In this picture provided by the World Health Organization, a package of vials of the first shipment of the experimental vaccine VSE-EBOV is opened at the Geneva Cantonal hospital on Wednesday, Oct. 22, 2014. The World Health Organization (WHO) welcomes the donation by the government of Canada of 800 vials of an experimental candidate vaccine, VSV-EBOV, against Ebola virus disease. Clinical safety trials with this experimental Ebola vaccine have already begun in healthy human volunteers in Mali, the United Kingdom and the United States after showing very promising results in animal research. . (AP Photo/WHO/Mathilde Missioneiro) 

Swissmedic said the trial will be conducted among 120 volunteer participants with support from the U.N. World Health Organization. The experimental vaccine is to be initially administered on healthy volunteers who will be sent as medical staff to fight the Ebola epidemic in West Africa.

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