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US regulators recall 10-minute Ebola test

AFP                                                                                April  23, 2015
Miami  - US regulators have issued an international recall for a 10-minute Ebola blood test made by a California-based company, saying it has not been proven to work and could put lives at risk.

"A recall has been issued for the LuSys Laboratories, Inc., Ebola Virus One-Step Test Kits because the FDA has not cleared or approved the kits for use or sale," said the Food and Drug Administration in a statement emailed to reporters on Thursday.

"The results obtained from these test kits have not demonstrated to be accurate and should not be used as in vitro diagnostic tests for Ebola infection."

Contacted by AFP, a company representative in San Diego said early trials have shown the test to be 86 percent accurate. The problem with the FDA came down to a labeling error, he said. The equipment had not been properly labeled "for research purposes only."

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http://news.yahoo.com/us-regulators-recall-10-minute-ebola-test-193530081.html;_ylt=AwrC1CmnSjlVNDsAZTDQtDMD;_ylu=X3oDMTByaWg0YW05BGNvbG8DYmYxBHBvcwM4BHZ0aWQDBHNlYwNzcg--

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Ebola survivors donate plasma to tackle outbreak

EUREKALERT                                                                           April 22, 2015
UNIVERSITY OF LIVERPOOL -- 
The first donations of plasma, from survivors of the Ebola epidemic in Sierra Leone, have been received by an international research team working to help tackle current and future disease outbreaks in West Africa.

The team, led by scientists at the University of Liverpool and colleagues at the College of Medicine and Allied Health Services, Ministry of Health, Sierra Leone, is investigating how plasma from Ebola survivors could help treat patients with the disease at the Ebola Treatment Unit, run by the 34th Regiment Military Hospital group in Freetown.

Dr Calum Semple, from the University's Institute of Child Health, and his collaborators developed a convalescent plasma protocol in readiness for an outbreak, such as Ebola, as part of the outbreak preparatory work of the International Severe Acute Respiratory and Emerging Infection Consortium.

The study is one of several being supported by the Wellcome Trust's platform for evaluating experimental Ebola therapeutics in West Africa.

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http://www.eurekalert.org/pub_releases/2015-04/uol-esd042215.php

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Tekmira Ebola drug succeeds in small monkey study

REUTERS by Aharon Begley                                                                    Aug. 22, 2015
NEW YORK --An experimental Ebola drug from Tekmira Pharmaceuticals Corp cured all three monkeys intentionally infected with the virus, scientists reported on Wednesday, the first such success against the strain of Ebola in West Africa's 2014-2015 outbreak.

Although other experimental treatments appeared to help Ebola patients last year, especially in the United States, those one-time uses cannot prove efficacy against the "Makona" strain, since patients' recovery might be due to other causes. Similarly, drugs, including Mapp Biopharmaceutical's ZMapp, cured monkeys in lab experiments, but in a strain of Ebola different from that responsible for the current outbreak, the worst ever recorded.

"We can't say for certain that an experimental drug that works against one strain will work in another, even if they're almost identical genetically," said Thomas Geisbert of the University of Texas Medical Branch, senior author of the study published in the journal Nature.

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Understanding the Emergence of Ebola Virus Disease in Sierra Leone: Stalking the Virus in the Threatening Wake of Emergence

PLOS  Current Outbreaks  by Nadia Wauquier and others                                             April 20, 2015

The initial steps of emergence and spread of a virus are critical in the development of a potential outbreak and need to be thoroughly dissected and understood in order to improve on preventative strategies. In the current West African outbreak of EVD, a unique index case has been identified, pinpointing the geographical origin of the epidemic in Guinea.

Herein, we provide an accounting of events that serve as the footprint of EVD emergence in Sierra Leone and a road map for risk mitigation fueled by lessons learned....

...Continuous active surveillance is needed and must be organized by specialized centers joined in local, regional, and international networks. Surveillance centers must be connected to public health systems and also to research teams for increased understanding and awareness to permit identification and implementation of rapid intervention strategies....

Read complete study  and see maps.

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Scientists to share real-time genetic data on deadly MERS, Ebola

REUTERS by Kate Kelland                     April 21, 2015

LONDON, April 21 - Genetic sequence data on two of the deadliest yet most poorly understood viruses are to be made available to researchers worldwide in real time as scientists seek to speed up understanding of Ebola and MERS infections.

The project, led by British scientists with West African and Saudi Arabian collaboration, hopes to encourage laboratories around the world to use the live data -- updated as new cases emerge -- to find new ways to diagnose and treat the killer diseases, and ideally, ultimately, prevent them.

"The collective expertise of the world's infectious disease experts is more powerful than any single lab, and the best way of tapping into this...is to make data freely available as soon as possible," said Jeremy Farrar, director of the Wellcome Trust global health charity which is funding the work.

The gene sequences, already available for MERS cases and soon to come in the case of Ebola, will be posted on the website virological.org for anyone to see, access and use.

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http://af.reuters.com/article/topNews/idAFKBN0NC19W20150421?sp=true

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Evaluating Clinical Trial Designs for Investigational Treatments of Ebola Virus Disease

PLOS MEDICINE   by Ben Cooper and others                                                             April 14, 2015
Experimental treatments for Ebola virus disease might reduce EVD mortality. There is uncertainty about the ability of different clinical trial designs to identify effective treatments, and about the feasibility of implementing individually randomised controlled trials during an Ebola epidemic

A treatment evaluation programme for use in EVD was devised using a multi-stage approach (MSA) with two or three stages, including both non-randomised and randomised elements. The probabilities of rightly or wrongly recommending the experimental treatment, the required sample size, and the consequences for epidemic outcomes over 100 d under two epidemic scenarios were compared for the MSA, a sequential randomised controlled trial (SRCT) with up to 20 interim analyses, and, as a reference case, a conventional randomised controlled trial (RCT) without interim analyses.

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http://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1001815

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Testing of Ebola vaccine is underway in Sierra Leone

USA TODAY by Liz Szabo                                                                 April 14, 2015
Sierra Leone has begun testing an experimental Ebola vaccine, officials of the Centers for Disease Control and Prevention announced Tuesday.
                                                                                            (Photo: CELLOU BINANI, AFP/Getty Images)

The $25 million study, funded through $5.4 billion in Ebola aid authorized by Congress, will test vaccines on 6,000 "front-line workers," including doctors, nurses, burial workers and others, who are at highest risk of the disease.

But with only a handful of new Ebola cases being reported now in Sierra Leone, it may be difficult to get a clear answer on whether the vaccine actually works, the CDC acknowledges. If there are no new cases of Ebola among vaccinated volunteers, for example, researchers won't know if that's the result of the immunizations or because the outbreak has faded....

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2 new ebola vaccines pass important early test, researchers say

NEW YORK TIMES   by Denis Grady                                                                 April 9. 2015

Two  new Ebola vaccines have passed an important test, protecting monkeys against the strain of the virus responsible for the current deadly outbreak, researchers reported on Wednesday. Only one dose was needed, and there were no apparent side effects..

Thomas W. Geisbert, an Ebola expert at the University of Texas Medical Branch in Galveston, in his office. Credit Michael Stravato for The New York Times

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UN envoy: Expect Ebola vaccine in coming months

INQUIRER.NET  by Kristine Angeli Sabillo                  APRIL 8, 2015

MANILA --As the Ebola outbreak in West Africa winds down, the United Nations is optimistic that a vaccine against the deadly virus will be made available in the next several months.

“Clinical trials have have now been undertaken of candidate vaccines, two of them. They are now at an advanced stage,” Dr. David Nabarro, UN secretary general special envoy on Ebola, told reporters in Manila on Wednesday.

“I believe that we will have a vaccine against Ebola that is available and can be used particularly for doctors and nurses who provide treatment for people with the disease in the coming months,” he added.

According to the World Health Organization, the two vaccine candidates undergoing efficacy trials are ChAd3-ZEBOV, developed by GlaxoSmithKline (GSK), and rVSV-ZEBOV, developed by NewLink Genetics and Merck Vaccines USA. The first is being developed in collaboration with the US National Institute of Allergy and Infectious Diseases (NIAID) and the second with the Public Health Agency of Canada.

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http://globalnation.inquirer.net/120463/un-envoy-expect-ebola-vaccine-in-coming-months/

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Ebola Vaccine 2015: Guinea Seen As Best Hope For Preventative Drug Trials, But Time Is Running Out

INTERNATIONAL BUSINESS TIMES by Philip Roth       April 7, 2015

(Two stories. Scroll down)
Health officials’ best bet for discovering a vaccine for Ebola lies with the West African country of Guinea, where the outbreak that has killed an estimated 10,500 over the past year began, and the place that researchers largely ignored when it came time for drug trials. As researchers race to find a vaccine before the window of opportunity closes – essentially, before the epidemic is brought to an end -- scientists with the World Health Organization are beginning to test a vaccine in Guinea manufactured by researchers in the U.S. and Canada.

 

The race to find a vaccine for Ebola is in its final lap. Pictured, research assistant Georgina Bowyer works on a vaccine for Ebola at the Jenner Institute in Oxford, southern England, Jan. 16, 2015. Reuters

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