Ebola virus not mutating as quickly as thought

SCIENCE NEWS  by Ashley Yaeger                                                      March 26, 2015

(Scroll down for full study.)

The virus causing the current Ebola epidemic in West Africa is not evolving as quickly as some scientists had suggested.

REGULAR RATE  A genetic analysis suggests that the Ebola virus, shown here in orange, is not evolving as fast as expected.

In a paper last August, researchers reported that the virus (Zaire ebolavirus) was altering its genes almost twice as fast as it had during previous Ebola outbreaks in Central Africa (SN: 9/20/14, p. 7). However, a new genetic analysis shows that the virus is mutating at roughly the same rate as in past outbreaks, researchers report online March 26 in Science. The finding suggests the virus has not become more virulent or transmissible during the West Africa outbreak.

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How Did Ebola Volunteers Know Where To Go In Liberia? Crowdsourcing!

NATIONAL PUBLIC RADIO  by Poncie Rutsch                                                      March 25, 2015
From more than 900 miles away, Kpetermeni Siakor helped get volunteers to the right neighborhoods in his native Liberia during the height of the Ebola epidemic.

Kpetermeni Siakor (left), a Liberian who is studying in Ghana, used crowdsourcing software to help out during the Ebola epidemic. Courtesy of Ashesi University College

He did it with Ushahidi, crowdsourcing software that was developed in Kenya in 2008, when the country experienced a wave of post-election violence. The word Ushahidi means testimony in Swahili.

"The government had shut down internet connections and radio stations, so Ushahidi was born out of the need to let people know what is happening," says Siakor, 26. He's a computer science student at Ashesi University College in Accra, Ghana, and receives financial support from the MasterCard Foundation Scholars Program.

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Dr. Gavin Macgregor-Skinner - Ebola - Health Organizations Slow to Respond

      

CLICK HERE - RECORDED VIDEO - Dr. Gavin Macgregor-Skinner

ctvnews.ca - March 23, 2015

Public health emergency expert Dr. Gavin Macgregor-Skinner discusses a new report saying faster action would have stopped the spread of Ebola.

CLICK HERE - MSF REPORT AND RELATED INFORMATION

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Ebola Vaccine Trial Starts in Guinea

TIME MAGAZINE  by Alexandra Sifferlin                                             March 25, 2015
An efficacy trial for an Ebola vaccine launched in Guinea on Wednesday.

 

 A health worker prepares a vaccination on March 10, 2015 at a health center in Conakry during the first clinical trials of the VSV-EBOV vaccine against the Ebola virus.

The vaccine, VSV-EBOV, was developed by the Public Health Agency of Canada and has already shown positive results in smaller safety trials. NewLink Genetics and Merck are collaborating on the vaccine, and the Guinean government and World Health Organization (WHO) are leading the trial, which is taking place in Basse-Guinée, a community where many Ebola cases spread.

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Ebola Death Rates Vary Widely by Age Group

LIVE SCIENCE       by

Young children who are infected with Ebola may be more likely to die from the virus than older children or adults who are infected, according to a new study.

 In the study, researchers examined Ebola cases in children younger than 16 during the current outbreak in Guinea, Liberia and Sierra Leone, and compared them with adult cases. They found that the outbreak's death rate has been higher among younger children than among older children and adults.

The disease has killed about 90 percent of infected children under age 1, and about 80 percent of kids ages 1 to 4 who have been infected. Older children who have been infected with Ebola may have a much better chance of surviving....

"The very youngest of children — neonates  —appear to have the worst outcomes from Ebola," study co-author Dr. Robert Fowler, an associate professor of critical-care medicine at the University of Toronto, said in a statement. (Neonates, or newborns, are babies younger than 1 month.)

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Strengthening the Detection of and Early Response to Public Health Emergencies: Lessons learned from, the Ebola outbreake

PLOS MEDICINE by Mark J. Siedner, Lawrence O. Gostin, Hilarie H. Cranmer,and John D. Kraemer                        March 24, 2015

In-depth paper on lessons learned from the West Africa Ebola outbreak

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WHO Ebola Situation Report - 25 March 2015

WHO  WEEKLY SITUATION REPORT                                         March 25, 2015

Summary 

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Exposure Concerns Grow in Liberia After Diagnosis of First Ebola Case in Weeks

NEW YORK TIMES  by Sheri Fink                                                            March  25, 2015

Worries have widened in recent days over the number of people in Liberia who may have been exposed to the country’s first Ebola case in more than two weeks, a street vendor who lived in a one-bathroom house shared with 52 others in a Monrovia suburb and who had sold food at a school where more than 1,900 students are enrolled.

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New Ebola trial vaccine 'safe': researchers

AFP                                                                                                   March 25, 2015

Paris - The latest in a string of candidate vaccines against the deadly Ebola virus was proven safe in an early trial in healthy adults in China, its developers said Wednesday.

 But while it triggered an antibody response in test subjects, further trials must be held to establish whether the drug actually protects against Ebola, they said.

Dubbed Ad5-EBOV, the vaccine is the first based on the strain of the Ebola virus behind the west African outbreak, according to a paper published in The Lancet medical journal.

Read complete story.
http://news.yahoo.com/ebola-trial-vaccine-safe-researchers-140735607.html;_ylt=AwrBJR6SwhJVFgkANl3QtDMD

Read Lancet article.

http://www.thelancet.com/journals/lancet/article/PIIS0140-6736%2815%2960553-0/abstract

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Study announces a durable vaccine for Ebola

MEDICAL EXPRESS                                                                                             March 25, 2015

A new study shows the durability of a novel 'disseminating' cytomegalovirus (CMV)-based Ebola virus (Zaire ebolavirus; EBOV) strategy that may eventually have the potential to reduce ebolavirus infection in wild African ape species.

These are western lowland gorillas, one of the great ape species threatened by Ebola. Credit: Copyright 2012 Chris Whittier

A cytomegalovirus (CMV)-based vaccine provides long-lasting protective immunity against Ebola virus, and has potential for development as a disseminating vaccine strategy to prevent ebolavirus infection of wild African ape populations.

The multi-institutional study is led by Dr Michael Jarvis at Plymouth University, and is published today, 25th March 2015, in Vaccine.

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A Chemical Within a Traditional Chinese Medicine Has been Found to Be Effective Against Ebola

      

Health workers in protective clothing speak with new arrivals in the outpatient waiting room of Redemption Hospital, formerly an Ebola holding centre, in Liberia.  John Moore/Getty Images

CLICK HERE - SCIENCE - REPORT - Two-pore channels control Ebola virus host cell entry and are drug targets for disease treatment

businessinsider.com.au - by Chris Pash - February 27, 2015

A chemical found in the Chinese herb known as Han Fang ji switches off the channels which the Ebola virus uses to enter and infect cells, according to research by US and German scientists.

The scientists found that using a small dose of the chemical tetrandrine, but not the herb itself, stopped the virus from replicating and protected mice from the disease without obvious side effects.

The discovery of the promising drug therapy against Ebola is announced in the journal Science.

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Sex the Hidden Culprit: A New Dimension in Ebola Infections in Liberia

africansuntimes.com - by Mardia Stone, M.D. - March 23, 2015

On March 20th, a newly confirmed Ebola case was reported [in Liberia] . . . This time, sexual contact is presumed to be the hidden culprit in this new Ebola virus transmission, according to a statement from the Ministry of Information and case reports from the National Ebola Response Team.

The story goes like this. . . .

(READ COMPLETE ARTICLE - PLEASE ALLOW ADDITIONAL TIME FOR POSSIBLE SLOW-LOADING SITE)

(ALSO SEE RELATED INFORMATION HERE)

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Pandemic Disease: Never again

As the Ebola epidemic draws gradually to its close, how should the world arm itself against the risks of insurgent infections?

 THE ECONOMIST                                                                                        March 21,  2015

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The Ebola detectives

The BBC   by Hans Rosling                                                                    March 23, 2015
Interview with Swedish statistician and global health professor Hans Rosling who spent three months working as an epidemiologist in the Liberian Health Ministry helping to tackle the Ebola crisis.

 

                  Hans Rosling flanked by Maj Morris Hunh (China), to his right, and Gen Gary Volesky(U.S.) to his left

Excerpt from BBC interview:

The curve turned around because enough Ebola treatment units were built. Medecins Sans Frontieres ran the biggest. When that was not enough, Liberian doctors and nurses added the next treatment unit. But the race against time in September to provide treatment and isolation for all patients, when the epidemic curve climbed to 30, 40 and 50 patients per day, was won by the WHO.

 By the end of September, Dr Atai from Uganda opened the so-called Island Clinic which meant beds could be offered to all Ebola patients.The curve was curbed for four reasons:

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Ebola Diaries: Hitting the Ground Running

INFECTION CONTROL TODAY                                      March 24, 2015
The World Health Organization (WHO) is publishing a series, "Ebola Diaries," with first-person accounts of WHO staff and others deployed to the field for Ebola response since the first cases were reported in West Africa on March 23, 2014.
 
Dr. Stéphane Hugonnet, team lead for gobal capacities, alert and responses for the World Health Organization (WHO), was one of the first WHO experts sent to Guinea to investigate cases of Ebola reported in late March 2014. A medical doctor who has spent the past 20 years working for WHO, MSF and others, managing outbreaks ranging from cholera, measles and yellow fever, to Lassa, Ebola and meningitis, Hugonnet found a very different sort of outbreak when he arrived in Guinea.

"We were following this rumor of a small cluster of unexplained deaths in Guinea," he says. "Some thought it could be Lassa    phane fever, but the transmission pattern was very compatible with Ebola. When the lab results came back, we learned that there was Ebola Zaire in West Africa.            

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