Showing posts with label Sierra Leone. Show all posts
Showing posts with label Sierra Leone. Show all posts

#WHO declares Ebola epidemic an international #health #emergency

#GNN - West #Africa's #Ebola epidemic is an "extraordinary event" and now constitutes an international health risk, the World Health Organization (WHO) said on Friday.
 The Geneva-based U.N. health agency said the possible consequences of a further international spread of the outbreak, which has killed almost 1,000 people in four West African countries, were "particularly serious" in view of the virulence of the virus.

"A coordinated international response is deemed essential to stop and reverse the international spread of Ebola," the WHO said in a statement after a two-day meeting of its emergency committee on Ebola.

The declaration of an international emergency will have the effect of raising the level of vigilance on the virus.

"The outbreak is moving faster than we can control it," the WHO's director-general Margaret Chan told reporters on a telephone briefing from the WHO's Geneva headquarters.

"The declaration ... will galvanize the attention of leaders of all countries at the top level. It cannot be done by the ministries of health alone."

The agency said that, while all states with Ebola transmission - so far Guinea, Liberia, Nigeria and Sierra Leone - should declare a national emergency, there should be no general ban on international travel or trade.

"THIS CAN BE STOPPED"
Ebola has no proven cures and there is no vaccine to prevent infection, so treatment focuses on alleviating symptoms such as fever, vomiting and diarrhea - all of which can contribute to severe dehydration.

Keiji Fukuda, the WHO's head of health security, stressed that, with the right measures to deal with infected people, the spread of Ebola - which is transmitted through direct contact with bodily fluids - could be stopped.

"This is not a mysterious disease. This is an infectious disease that can be contained," he told reporters. "It is not a virus that is spread through the air."

Fukuda said it was important that anyone known to have Ebola should be immediately isolated and treated and kept in isolation for 30 days. "Based on scientific studies, people who have infection can shed virus for up to 30 days," he said.

The current outbreak, in which at least 1,711 people have so far been infected, of whom 932 have died, is the most severe in the almost 40 years since Ebola was identified in humans.

The WHO said this was partly because of the weakness of the health systems in the countries currently affected, which lacked human, financial and material resources.

It also said inexperience in dealing with Ebola outbreaks and misperceptions of the disease, including how it is transmitted, "continue to be a major challenge in some communities".

"If we do not in global solidarity come together to help these countries, they will be set back for many years," Chan said. She noted the three hardest-hit nations had only begun to emerge and rebuild after "years of conflict and difficulties".

Although most cases of Ebola are in the remote area where Guinea borders Sierra Leone and Liberia, alarm over the spread of the disease increased last month when a U.S. citizen died in Nigeria after traveling there by plane from Liberia.

After an experimental drug was administered to two U.S. charity workers who were infected in Liberia, Ebola specialists urged the WHO to offer such drugs to Africans. The U.N. agency has asked medical ethics experts to explore this option next week. [ID:nL6N0QB5UH]

David Heymann, a former WHO official and now director of the Chatham House Centre on Global Health Security, who this week urged the WHO to show greater leadership and to consider allowing the use of experimental drugs for Africans affected by Ebola, said governments should step up their response.

The major message, he said, was that the three known measures that stop Ebola outbreaks – hospital infection control, community understanding of risks of infection, and contact tracing - "appear not to have been robustly enough applied".

"Governments appear to not have been engaged as necessary," he said in an emailed response to the WHO's statement.

(GNN)(Reuters)(AIP)(Reporting by Kate Kelland, additional reporting and editing by Kevin Liffey)

Geneticists offer clues to better rice, tomato crops

#GNN - #PARIS: Scientists on Sunday laid bare the genetic codes of African rice and a type of wild tomato, data they said should help breed more resilient crops.
Teams detailed the genome sequences of the two plant species in separate papers in the journal Nature Genetics.

"As the world population is projected to increase from 7.1 billion to over nine billion by 2050, plant biologists must forge a second green revolution with the creation of crops that have two to three times the current yield with reduced inputs (i.e less water, fertilizers and pesticides)," said the rice research paper.

"Rice will have a key role in helping to solve the problem of how to feed nine billion people."

African rice, scientific name Oryza glaberrima, is more drought resistant than the much more common Asian species (Oryza sativa).

In unravelling its genomic signature, an international team of geneticists established that African rice was domesticated from a wild species in a region next to the Niger river about 3,000 years ago -- some 7,000 years after the domestication of Asian rice.

While more work is needed to pinpoint the individual stress-resistant genes, the team said publication of the genome presented "an unprecedented opportunity" for breeding new varieties of high-yield, drought-resistant crops.

The second study, into the inedible, wild South American tomato Solanum pennellii, managed to identify key genes linked to dehydration resistance, fruit development and ripening.

The species is already used to improve the cultivated common tomato, Solanum lycopersicum, through interbreeding.

The new data may help breed even tastier, more stress-tolerant tomatoes, said the study authors. (GNN)(AIP)(AFP)

Nigeria isolates hospital in Lagos as Obama briefed on Ebola outbreak

#GNN - The #Nigerian city of Lagos shut and quarantined a hospital on Monday where a Liberian man died of the Ebola virus, the first recorded case of the highly-infectious disease in Africa's most populous country.
Patrick Sawyer, a consultant for Liberia's Finance Ministry in his 40s, collapsed on arrival at the Lagos airport on July 20. He was put in isolation at the First Consultants Hospital in Obalende, one of the most crowded parts of a city that is home to 21 million people. He died on Friday.

"The private hospital was demobilized (evacuated) and the primary source of infection eliminated. The decontamination process in all the affected areas has commenced," Lagos state health commissioner Jide Idris told a news conference. He said the hospital would be closed for a week and the staff would be closely monitored.

Ebola has killed 672 people in Guinea, Liberia and Sierra Leone since it was first diagnosed in February. The fatality rate of the current outbreak is around 60 percent although the disease can kill up to 90 percent of those who catch it. Highly contagious, its symptoms include vomiting, diarrhea and internal and external bleeding.

In Sierra Leone, which has the highest number of Ebola cases in the current outbreak at 525, President Ernest Bai Koroma visited an Ebola center in the northeastern district of Kenema.

An administration official said President Barack Obama was receiving updates, and noted that U.S. agencies had stepped up assistance to help contain the virus.

Susan Rice, Obama's national security adviser, said in a televised interview on Monday the outbreak was of "grave concern."

"We are very much present and active in trying to help the countries of the region and the international authorities like the World Health Organization address and contain this threat. But it is indeed a very worrying epidemic," Rice told MSNBC.

HOSPITAL STAFF, OTHERS MONITORED
Authorities were monitoring 59 people who were in contact with Sawyer, including airport contacts, the Lagos state health ministry said, but it said the airline had yet to provide a passenger list for the flights Sawyer used.

Derek Gatherer, a virologist at Britain's University of Lancaster, said anyone on the plane near Sawyer could be in "pretty serious danger," but that Nigeria was better placed to tackle the outbreak than its neighbors.

"Nigerians have deep pockets and they can do as much as any Western country could do if they have the motivation and organization to get it done," he said.

Nigeria's largest air carrier Arik Air has suspended flights to Liberia and Sierra Leone because of the Ebola risk, Arik spokesman Ola Adebanji said in an email on Monday.

"RED ALERT"
David Heymann, head of the Centre on Global Health Security at London's Chatham House, said every person who had been on the plane to Lagos with Sawyer would need to be traced and told to monitor their temperature twice a day for 21 days.

The World Health Organization said in a statement that Sawyer's flight had stopped in Lomé, Togo, on its way to Lagos.

"WHO is sending teams to both Nigeria and Togo to do follow- up work in relation to contact tracing, in particular to contacts he may have had on board the flight," spokesman Paul Garwood said.

Liberia closed most of its border crossings and introduced stringent health measures on Sunday, a day after a 33-year-old American doctor working there for the relief organization Samaritan's Purse tested positive for Ebola.

Nigeria's airports, seaports and land borders have been on "red alert" since Friday over the disease.

Exacerbating the difficulty of containing the virus, Nigerian doctors are on strike over conditions and pay.

The WHO said that in the past week, its regional director for Africa, Luis Sambo, had been on a fact-finding mission to Guinea, Liberia and Sierra Leone, which have 1,201 confirmed, suspected and probable cases among them.

"He observed that the outbreak is beyond each national health sector alone and urged the governments of the affected countries to mobilize and involve all sectors, including civil society and communities, in the response," the WHO said.

(GNN,Reuters,AIP)(Reporting by Tim Cocks, additional reporting by Oludare Mayowa in Lagos, Tom Miles in Geneva, Kate Kelland in London, Roberta Rampton in Washington, and Umaru Fofana in Freetown; writing by Toni Reinhold, editing by G Crosse)

#Liberia shuts border crossings, restricts gatherings to curb Ebola spreading

#GNN - The Liberian government on Sunday closed most of the West African nation's border crossings and introduced stringent health measures to curb the spread of the deadly Ebola virus that has killed at least 660 people across the region.
The new measures announced by the government on Sunday came as Guinea, Liberia and Sierra Leone struggle to contain the worst outbreak yet of the virus.

Speaking at a task force meeting, Liberia President Ellen Johnson Sirleaf said the government is doing everything to fight the virus including inspecting and testing all outgoing and incoming passengers by Liberia's airport authority.


"All borders of Liberia will be closed with the exception of major entry points. At these entry points, preventive and testing centers will be established, and stringent preventive measures to be announced will be scrupulously adhered to," she said.

Ebola can kill up to 90 percent of those who catch it, although the fatality rate of the current outbreak is around 60 percent. Highly contagious, especially in the late stages, its symptoms include vomiting and diarrhea as well as internal and external bleeding.

Under the new measures, public gatherings such as marches, demonstrations and promotional advertisements also will be restricted.

The outbreak has placed a great strain on the health systems of some of Africa's poorest countries.

"No doubt, the Ebola virus is a national health problem. And as we have also begun to see, it attacks our way of life, with serious economic and social consequences," Sirleaf said in a statement.

Still, despite efforts to fight the disease, the virus continues to spread. A 33-year-old American doctor working for relief organization Samaritan's Purse in Liberia tested positive for the disease on Saturday.

The charity said on Sunday a second American, who was helping a team treating Ebola patients at a case management center in Monrovia had also tested positive.

Samuel Brisbane, a senior Liberian doctor, who was also treating infected patients has died after contracting the virus, authorities said on Sunday. In Nigeria's commercial capital Lagos, a Liberian man who tested positive died in on Friday.

(GNN,Reuters,AIP)(Reporting by Clair MacDougall; Writing by Bate Felix; Editing by Diane Craft)