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The World Health Organization (WHO) has declared Guinea free of Ebola, two years after the epidemic began in the country.

Guineans are expected to celebrate the landmark with concerts and fireworks.

Ebola killed more than 2,500 people in Guinea and a further 9,000 in Sierra Leone and Liberia.

Sierra Leone was declared free of Ebola in November, but new cases have emerged in Liberia, which had been declared Ebola-free in September.

A country is considered free of human-to-human transmission once two 21-day incubation periods have passed since the last known case tested negative for a second time.

Photo WHO

Photo WHO

Local health workers echoed a warning from medical charity Medecins Sans Frontieres that vigilance was still vital despite the mood of celebration.

“We have to be very careful, because even if open transmission has been stopped, the disease has not been totally defeated,” said Alpha Seny Souhmah, a Guinean health worker and Ebola survivor.

According to the UN, 6,220 Guinean children have lost one or both parents to Ebola.

More than 100 health workers also lost their lives in the fight against the disease.

Many survivors still live in fear of the stigma and long-term side effects associated with the virus.

Guinea’s government has blamed the virus for poor economic performance and says it has also caused people to distrust the country’s health services.

President Alpha Conde has doubled the health budget since winning re-election in October 2015.

Spanish authorities are investigating a hospital in Madrid after a nurse became the first person known to have contracted the deadly Ebola virus outside West Africa.

The nurse had treated two Spanish missionaries who died of the disease after being flown home from the region.

Three other people, including the nurse’s husband, have been quarantined.

The European Commission has asked Spain to explain how the nurse could have become infected.

Some 3,400 people have died in the outbreak – mostly in West Africa.

The Spanish auxiliary nurse, a 40-year-old woman who has not been named, was one of about 30 staff at the Carlos III hospital in Madrid who had been treating priests Manuel Garcia Viejo and Miguel Pajares, officials say.

Manuel Garcia Viejo, 69, died at the hospital on September 25 after catching Ebola in Sierra Leone. Miguel Pajares, 75, died in August after contracting the virus in Liberia.

The nurse had twice gone into the room where Manuel Garcia Viejo had been treated, to be directly involved in his care and to disinfect the room after his death. Both times she was wearing protective clothing.

Madrid healthcare director Antonia Alemany told reporters that according to the information available: “The nurse went into the room wearing the individual protection gear and there’s no knowledge of an accidental exposure to risk.”

The Spanish nurse was one of about 30 staff at the Carlos III hospital in Madrid who had been treating priests Manuel Garcia Viejo and Miguel Pajares

The Spanish nurse was one of about 30 staff at the Carlos III hospital in Madrid who had been treating priests Manuel Garcia Viejo and Miguel Pajares

Shortly afterwards the nurse went on holiday, a hospital spokesman said, but fell ill on September 30 and was admitted to Alcorcon hospital in south-west Madrid on October 5 after being tested positive for Ebola.

Early on Tuesday she was moved under police escort to Carlos III hospital in the capital and is said to be in a stable condition.

The Spanish health authorities say she is being treated with a drip using antibodies from previous Ebola patients.

Her husband and a second nurse who treated the missionary are now in quarantine, officials said, as well as a man who recently arrived on a flight from Nigeria.

Doctors are also monitoring 22 people who the nurse had contact with at Alcorcon hospital, and 30 people working at Carlos III, according to health sources quoted by Spanish newspaper El Pais.

They include an ambulance crew, and doctors and nurses, and have all been contacted by the health authorities.

It was not clear where the nurse had gone on holiday.

It is also unclear how she could have contracted Ebola.

The hospital was reported to have had extreme protective measures in place including two sets of overalls, gloves and goggles.

However, health workers told El Pais newspaper that the clothing did not have level-four biological security, which is fully waterproof and with independent breathing apparatus.

Instead it was level two, the paper says, as photographs provided by staff indicated that the overalls did not allow for ventilation and the gloves were made of latex and bound with adhesive tape.

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The first Ebola case diagnosed on US soil has been confirmed in Dallas, Texas.

According to Texas Health Presbyterian Hospital officials, the unidentified patient is being kept in isolation.

The man is thought to have contracted the virus in Liberia before travelling to the US nearly two weeks ago.

More than 3,000 people have already died of Ebola in West Africa and a small number of US aid workers have recovered after being flown to the US.

“An individual travelling from Liberia has been diagnosed with Ebola in the United States,” Centers for Disease Control and Prevention (CDC) Director Thomas Frieden told reporters on September 30.

Thomas Frieden said the unnamed patient left Liberia on September 19 and arrived in the United States the next day to visit relatives, without displaying any symptoms of the virus.

Symptoms of the virus became apparent on September 24, and on September 28 he was admitted to a Texas hospital and put in isolation.

The first Ebola case diagnosed on US soil has been confirmed at Texas Health Presbyterian Hospital

The first Ebola case diagnosed on US soil has been confirmed at Texas Health Presbyterian Hospital

The disease, which is not contagious until symptoms appear, is spread via close contact with bodily fluids.

Aid workers who caught Ebola in West Africa have come back to the US for treatment but this is the first case of a patient developing the virus on US soil.

A hospital official told reporters on September 30 the facility already had procedures in place to deal with any such potential cases.

Preliminary information indicates that the unnamed patient, who was described as critically ill, was not involved in treating Ebola-infected patients while in Liberia.

Health officials are working to identify all people who came into contact with the unnamed patient while he was infectious.

Those people will then be monitored for 21 days to see if an Ebola-related fever develops.

According to Thomas Frieden, it is possible a family member who came in direct contact with the patient may develop Ebola in the coming weeks.

The World Health Organization (WHO) says more than 3,000 people have died of the virus so far, mostly in Liberia.

Earlier on Tuesday, the CDC said the Ebola virus seemed to be contained in Nigeria and Senegal, with no new cases reported there for almost a month.

It is the world’s most deadly outbreak of the Ebola virus.

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President Barack Obama has announced the US measures to combat the Ebola virus as he called the outbreak in West Africa “a threat to global security”.

“The world is looking to the United States,” Barack Obama said, but added the outbreak required a “global response”.

The measures announced included ordering 3,000 US troops to the region and building new healthcare facilities.

Ebola has killed 2,461 people this year, about half of those infected, the World Health Organization (WHO) said.

The announcement comes as UN officials have called the outbreak a health crisis “unparalleled in modern times”.

Among the measures announced by Barack Obama on September 16:

  • Building 17 healthcare facilities, each with 100 beds and isolation spaces, in Liberia
  • Training as many as 500 health care workers a week
  • Developing an air bridge to get supplies into affected countries faster
  • Provide home health care kits to hundreds of thousands of households, including 50,000 that the US Agency for International Development (USAID) will deliver to Liberia this week

Ebola only spreads in close contact but there is no cure and no vaccine. The outbreak began in Guinea before spreading to its neighbors Sierra Leone and Liberia.

President Barack Obama has announced the US measures to combat the Ebola virus as he called the outbreak in West Africa a threat to global security

President Barack Obama has announced the US measures to combat the Ebola virus as he called the outbreak in West Africa a threat to global security

Barack Obama said the outbreak had reached epidemic proportions in West Africa, as the disease “completely overwhelmed” hospitals and clinics and people were “literally dying on the streets”.

He called on other countries to step up their response, as a worsening outbreak would lead to “profound political, economic and security” issues.

There’s a “potential threat to global security if these countries break down”, he said, which would impact on everyone.

“The world knows how to fight this disease. We know if we take the proper steps we can save lives. But we have to work fast,” Barack Obama said.

Earlier, White House Press Secretary Josh Earnest said the 3,000 troops would not provide direct care to Ebola patients. Some soldiers would be stationed at an intermediate base in Senegal, while others will provide logistical, training and engineering support at locations in Liberia.

Also on September 16, a US congressional panel heard testimony from Dr. Anthony Fauci, director of the national Institute of Allergy and Infectious Disease, and Dr. Kent Brently, who recovered from an Ebola infection after receiving an experimental treatment for the disease.

Dr. Anthony Fauci told the committee 10 volunteers in a separate vaccine study had shown no ill effects from an early stage trial.

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UN’s Ebola co-ordinator David Nabarro has said that more than $1 billion is needed to fight the West Africa Ebola outbreak – a tenfold increase in the past month.

David Nabarro made the announcement as the World Health Organization (WHO) described the health crisis as “unparalleled in modern times”.

The Ebola virus has killed 2,461 people this year, half of the 4,985 infected, the global health body said.

There has been criticism of the slow international response to the epidemic.

Later, President Barack Obama is to announce plans to send 3,000 troops to Liberia, one of countries worst-affected by the outbreak, to help fight the virus.

It is understood the US military will oversee building new treatment centers and help train medical staff.

Medical charity Medecins Sans Frontieres (MSF) called on other countries to follow the US lead as the response to outbreak continued to fall “dangerously behind”.

The outbreak began in Guinea before spreading to its neighbors Sierra Leone and Liberia.

More than $1 billion is needed to fight the West Africa Ebola outbreak

More than $1 billion is needed to fight the West Africa Ebola outbreak (photo AFP)

Nigeria and Senegal have reported some cases, but seem to have contained the transmission of the virus.

“We requested about $100 million a month ago and now it is $1 billion, so our ask has gone up 10 times in a month,” David Nabarro told a briefing in Geneva.

“Because of the way the outbreak is advancing, the level of surge we need to do is unprecedented, it is massive.”

At the briefing WHO deputy head Bruce Aylward announced the new Ebola case figures.

“Quite frankly, ladies and gentlemen, this health crisis we’re facing is unparalleled in modern times. We don’t know where the numbers are going on this,” he said.

When the WHO had said it needed the capacity to manage 20,000 cases two weeks ago “that seemed like a lot”, Dr. Bruce Aylward said.

“That does not seem like a lot today,” he added.

At the same briefing, MSF president Joanne Liu said there needed to be “co-ordinated response, organized and executed under clear chain of command”.

Sick people in the Liberian capital were banging on the doors of MSF Ebola care centers desperate for a safe place in which to be isolated, Dr. Joanne Liu said.

“Tragically, our teams must turn them away; we simply do not have enough capacity for them,” Dr. Joanne Liu said.

“Highly infectious people are forced to return home, only to infect others and continue the spread of this deadly virus. All for a lack of international response.”

On September 16, the WHO welcomed China’s pledge to send a mobile laboratory team to Sierra Leone, which will include epidemiologists, clinicians and nurses.

“The most urgent immediate need in the Ebola response is for more medical staff,” WHO head Margaret Chan said in the statement.

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President Barack Obama will announce today his plans to send 3,000 troops to Liberia to help fight the Ebola virus, US officials say.

It is understood the US military will oversee building new treatment centers and help train medical staff.

There has been criticism of the slow international response to the Ebola epidemic in West Africa.

Sierra Leone, Liberia and Guinea are the worst-hit countries.

The Ebola outbreak has killed more than 2,400 people.

More than half of those killed by the virus have been in Liberia. The World Health Organization (WHO) warned recently that the country could see thousands of more cases.

UN officials will discuss the international response to the outbreak at a meeting in Geneva.

Barack Obama is planning to send 3,000 troops to Liberia to help fight the Ebola virus

Barack Obama is planning to send 3,000 troops to Liberia to help fight the Ebola virus

US officials said the aim of the country’s anti-Ebola initiative is to:

  • Train up to 500 healthcare workers a week
  • Construct 17 healthcare facilities, each with about 100 beds
  • Establish a joint command based in Monrovia, Liberia, to co-ordinate between US and international relief efforts
  • Distribute home healthcare kits to thousands of households
  • Conduct a home and community-based campaign to train local people in how to handle patients

Liberian President Ellen Johnson Sirleaf has appealed directly to Barack Obama for help in tackling the outbreak.

Several disease experts have welcomed the US plan, though some also question its focus on Liberia.

“We should see all of West Africa now as one big outbreak,” says Michael Osterholm, director of the Center for Infectious Disease Research and Policy at the University of Minnesota, quoted in The New York Times.

“It’s very clear we have to deal with all the areas with Ebola.”

Ebola spreads between humans by direct contact with infected blood, bodily fluids or organs, or indirectly through contact with contaminated environments.

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Ebola virus disease (EVD), formerly known as Ebola hemorrhagic fever is a severe, often fatal illness in humans.

Ebola first appeared in 1976 in 2 simultaneous outbreaks, in Nzara, Sudan, and in Yambuku, Democratic Republic of Congo. The latter was in a village situated near the Ebola River, from which the disease takes its name.

Symptoms start two days to three weeks after contracting the virus, with a fever, sore throat, muscle pain and headaches. Typically, vomiting, diarrhea and rash follow, along with decreased functioning of the liver and kidneys. Around this time, affected people may begin to bleed both within the body and externally.

According to the World Health Organization (WHO), EVD outbreaks have a case fatality rate of up to 90% and occur primarily in remote villages in Central and West Africa, near tropical rainforests.

Ebola is one of the world’s most deadly viruses but is not airborne, so cannot be caught like flu, the virus is transmitted to people from wild animals and spreads in the human population through human-to-human transmission.

Fruit bats of the Pteropodidae family are considered to be the natural host of the Ebola virus.

The Ebola outbreaks have a case fatality rate of up to 90 percent and occur primarily in remote villages in Central and West Africa, near tropical rainforest

The Ebola outbreaks have a case fatality rate of up to 90 percent and occur primarily in remote villages in Central and West Africa, near tropical rainforest (photo Getty Images)

Severely ill patients require intensive supportive care. No licensed specific treatment or vaccine is available for use in people or animals.

Doctors say avoiding the Ebola virus should be quite easy if you follow these top tips:

Wash your hands regularly with soap and clean water – and use clean towels to dry them. This can be difficult in slum and rural areas where there is not always direct access to clean water – but it is an effective way to kill the virus. Ordinary soap is all that’s needed. Shaking hands should also generally be avoided, because Ebola spreads quickly when people come into contact with an infected person’s body fluids and symptoms take can take a while to show. Other forms of greeting are being encouraged.

No touching – if you suspect someone of having Ebola, do not touch them. This may seem cruel when you see a loved one in pain and you want to hug and nurse them, but body fluids – urine and stools, vomit, blood, nasal mucus, saliva, tears etc. – can all pass on the virus. An infected person’s symptoms include fever, muscle and joint pain, sore throat, headache and fatigue – followed by nausea, vomiting and diarrhea, which may include blood. Encourage them to seek help from a medical professional or health centre as soon as possible. It is also advisable not to touch the clothes or bedclothes of Ebola patients. Medecins Sans Frontieres advises that such sheets and even mattresses be burnt.

Avoid dead bodies – if you think someone has died from Ebola, do not touch their body, even as part of a burial ceremony. When someone has died, you can still catch Ebola from their body as it ejects fluids that make it even more contagious than that of a sick person. Organize for a specialized team to deal with the body as quickly as possible as it is risky to leave a dead body for any length of time in a cramped living area.

Avoid bushmeat – hunting, touching and eating bushmeat such as bats, monkeys and chimpanzees, as scientists believe this is how the virus was first transmitted to humans. Even if a certain wild animal is a delicacy in your region, avoid it as its meat or blood may be contaminated. Make sure all food is cooked properly.

Don’t panic – spreading rumors increases fear. Do not be scared of health workers – they are there to help and a clinic is the best place for a person to recover – they will be rehydrated and receive pain relief. About half of the people infected in the current outbreak have died. There have been cases of medics being attacked and people being abandoned when they are suspected of having Ebola – even when they are suffering from something else. A belief in irrational traditional remedies has also exacerbated the spread of the virus.

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Nigerian schools have been ordered to remain closed until October 13 as part of measures to prevent the spread of the Ebola virus.

The new academic year was due to start on Monday, September 1.

The education minister ordered the closures to allow staff to be trained on how to handle suspected Ebola cases.

Five people have died of Ebola in Nigeria. The West Africa outbreak has centered on Guinea, Liberia and Sierra Leone, killing more than 1,400 people.

It is the largest ever outbreak and has infected an estimated 2,615 people. About half of those infected have died.

The virus is spread between humans through direct contact with infected bodily fluids.

Nigerian schools have been ordered to remain closed until October 13 as part of measures to prevent the spread of the Ebola virus

Nigerian schools have been ordered to remain closed until October 13 as part of measures to prevent the spread of the Ebola virus (photo Getty Images)

There is no cure for Ebola but with intensive care treatment and proper hydration, patients have a chance of survival.

It spread to Nigeria – Africa’s most populous country – in July, when a person infected with Ebola flew from Liberia to Lagos.

The Nigerian government says it hopes its efforts to contain the virus are working, as there is only one confirmed case of Ebola remaining.

“All state ministries of education are to immediately organize and ensure that at least two staff in each school, both private and public, are trained by appropriate health workers no later than 15 September 2014 on how to handle any suspected case of Ebola,” said Education Minister Ibrahim Shekarau.

“And also embark on immediate sensitization of all teaching and non-teaching staff in all schools on preventive measures,” he said.

Meanwhile, the World Health Organization (WHO) has temporarily shut an Ebola testing laboratory in Kailahun in eastern Sierra Leone after a Senegalese health worker became infected with the virus.

There have been 392 Ebola deaths in Sierra Leone, according to the latest UN figures released on August 22. Kailahun is one of the worst-affected districts and is currently under blockade.

“It’s a temporary measure to take care of the welfare of our remaining workers,” a WHO spokesman is quoted by the Reuters news agency as saying.

On Tuesday, the WHO said an “unprecedented” number of doctors and nurses had been infected with Ebola which was further impeding control efforts.

Infections were due to a shortage of protective equipment and staff, it said.

Only one or two doctors are available for 100,000 patients in some of the affected countries.

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There a handful of Ebola drugs that have been shown to work well in animals.

One is ZMapp – the drug requested by the Liberian government to treat infected doctors. This contains a cocktail of antibodies that attack proteins on the surface of the virus.

Only one drug has moved onto early safety testing in humans. Known as TKM-Ebola this interrupts the genetic code of the virus and prevents it from making disease causing proteins.

There a handful of Ebola drugs that have been shown to work well in animals

There a handful of Ebola drugs that have been shown to work well in animals

TKM-Ebola was trialed in healthy volunteers at the beginning of 2014 but the American medicines regulator asked for further safety information. The manufacturer says human studies may soon resume.

Another option would be to use serum from individuals who have survived the virus – this is a part of the blood that may contain particles able to neutralize the virus.

Vaccines to protect against acquiring the Ebola disease have also been shown to work in primates.

The US authorities are considering fast-tracking their development and say they could be in use in 2016. Trials are likely to start soon, according to the World Health Organization.

However, experts warn ultimately the only way to be sure a drug or vaccine is effective is to see if it works in countries affected by Ebola.

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An outbreak of the Ebola virus in the Democratic Republic of Congo has now killed 31 people and could threaten major towns, the World Health Organization has warned.

An epidemic was officially declared on 17 August in the northwestern Orientale Province.

WHO official Eugene Kabambi told Reuters that the situation was “very serious” and was “not under control”.

An outbreak of the Ebola virus in the Democratic Republic of Congo has now killed 31 people and could threaten major towns

An outbreak of the Ebola virus in the Democratic Republic of Congo has now killed 31 people and could threaten major towns

Ebola is highly contagious and kills up to 90% of people infected.

There is no known treatment or vaccine for the disease, which is spread by close personal contact and causes massive internal bleeding.

The death toll from this latest outbreak, centred on the towns of Isoro and Viadana, has more than doubled over the course of a week to 31.

Up to five health workers are thought to be among the dead.

“The epidemic is not under control. On the contrary the situation is very, very serious,” Eugene Kabambi warned, speaking in DR Congo’s capital Kinshasa.

“If nothing is done now, the disease will reach other places, and even major towns will be threatened,” he said.

Last month an outbreak of a more deadly Ebola strain in neighboring Uganda killed 16 people, but health workers say the two outbreaks do not appear to be related.