isolation unit at the Atlanta hospital in August after contracting the disease in Liberia. They are now both free of the virus

Ebola patients Nancy Writebol and Kent Brantly were kept in a specially-

The second Dallas nurse to contract Ebola after treating U.S. 'patient zero' Thomas Eric Duncan received permission from the CDC to get on a commercial flight with a low-grade fever on Monday.

That shocking confirmation by the CDC was revealed as nurse Amber Joy Vinson, 29, landed in Atlanta, Georgia to receive treatment at Emory University Hospital on Wednesday, in the same quarantine unit where American missionaries Dr Kent Brantly and Nancy Writebol were cured.

Miss Vinson was one of the nurses at Texas Health Presbyterian Hospital to treat Duncan when he was admitted a second time on September 28, in the first 'high-risk' days.

But on October 10, Miss Vinson left the Dallas area to plan her upcoming wedding in Cleveland, Ohio. Before her return flight on Monday, the nurse noticed a spike in her temperature and called the CDC several times to see if she should get on the plane.

When she finally got through to a CDC representative, she was cleared since her 99.5F fever was beneath the 100.4 threshold.

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Amber Jay Vinson, 29, from Ohio, was the second nurse in a matter of days to be diagnosed with Ebola after treating 'patient zero' Thomas Duncan

Miss Vinson's plane landed in Atlanta around 7:45pm Eastern Time. She was then seen being loaded into an ambulance (pictured) to be taken to Emory University Hospital

An air ambulance carrying Amber Vinson takes off from Love Field Airport bound for Emory hospital

'This nurse, Nurse Vinson, did in fact call the CDC several times before taking that flight and said she has a temperature, a fever of 99.5, and the person at the CDC looked at a chart and because her temperature wasn’t 100.4 or higher she didn’t officially fall into the category of high risk,' CBS Dallas/Fort Worth reports.

CDC Director Dr Thomas Frieden admits that was the wrong call.

'Those who have exposures to Ebola, she should not have traveled on a commercial airline,' Dr Frieden said Wednesday. 'The CDC guidance in this setting outlines the need for controlled movement. That can include a charter plane; that can include a car; but it does not include public transport. We will from this moment forward ensure that no other individual who is being monitored for exposure undergoes travel in any way other than controlled movement.'

Miss Vinson is driven to Emory University Hospital by ambulance for treatment for the deadly disease

Though the CDC is trying to contact every person that was on Frontier Airlines Flight 1143 on Monday, he says the threat of exposure is small since Miss Vinson's fever was low.

'She wasn't bleeding or vomiting,' Frieden said. 'The level of risk around her would be extremely low, but because of the extra margin of safety, we will be contacting [all those who were on the flight].'

Miss Vinson reported to the hospital on Tuesday, the day after she landed, and was put in isolation withing 90 minutes

Miss Vinson, in a yellow hazmat suit, is seen boarding a plane bound for Emory around 4:30pm Central Time on Wednesday

A health care worker in full protective clothing drove Miss Vinson in an ambulance to catch her flight to Emory in Atlanta, Georgia

A plane carrying Miss Vinson, who tested positive for Ebola, departs Love Field for Atlanta, Georgia

The registered nurse was one of 76 medical staff being monitored at Texas Presbyterian who were involved in the care of Mr Duncan, who died from Ebola a week ago.

Medical records released by Mr Duncan's family show Miss Vinson inserted catheters, drew blood, and dealt with Duncan's body fluids before he died.

According to CDC guidelines, the nurse should have limited her movements - but Dr Frieden was unclear whether Miss Vinson was actually told not to travel on a plane. He said CDC guidelines would be updated to clarify that air travel should not occur.

He also noted that Miss Vinson had flown to Ohio before the first nurse with Ebola, 26-year-old Nina Pham from Fort Worth, was diagnosed with the virus. Miss Pham was described as being in an 'improved condition' on Wednesday.

On Wednesday night Amber's relatives had begun a candlelit vigil at the home where she grew up.

Emergency vehicles escort an ambulance carrying the newly infected worker on the tarmac at the airport

Above, the Akron, Ohio childhood home of Amber Joy Vinson, the 29-year-old nurse who has become the second person to contract Ebola in the U.S.

On Wednesday, family held a candlelight vigil at the home as they waited for news of Vinson, who was flown to Atlanta, Georgia

This ambulance on the tarmac had reportedly delivered nurse Amber Vinson to an air ambulance

In the window of her grandparents' bungalow, which is next to her mother's house, two candles were in the window and were visible from the street.

When MailOnline knocked on the grandparents' house an elderly man could be seen in a chair in the sitting room anxiously waiting for news.

He said: 'We just don't know what's going on. We've been bombarded all day by people coming to the door. I wish I knew more'.

A female neighbour who lives next door said: 'I knew Amber when she was growing up. She was a beautiful girl, so quiet.

'We are all praying for her, I'm sure she will pull through'.

President Obama canceled trips to New Jersey and Connecticut today for a Cabinet meeting as fears mounted over the spread of Ebola.

A Frontier Airlines jet carrying Dallas nurse Amber Jay Vinson crisscrossed America's skies

Hazmat workers with Protect Environmental unload barrels in preparation for decontaminating an apartment at The Village Bend East apartment complex in Dallas where nurse Amber Vinson lives

A maintenance woman wears a mask while working before the Protect Environmental Haz-Mat emergency response team arrived at the Bend East apartment complex where the Ebola-stricken nurse lives

A helicopter hovers as the Protect Environmental Services, Inc. hazmat team goes to work at Amber Vinson's apartment complex in Dallas

Miss Vinson's grandmother, Martha Schuler, said family members had made a mercy dash from their home in Ohio to be with her.

OBAMA GETS SERIOUS ON EBOLA President Obama abruptly canceled a planned campaign trip on Wednesday and planned to convene his Cabinet at the White House instead. The White House said Obama's trip to New Jersey and Connecticut would be postponed to a later date. Obama's decision to nix the trip - just a few hours before Air Force One was scheduled to depart - reflected the urgency facing the administration amid the American public's escalating concerns about potential spread of the virus. Press secretary Josh Earnest said today that Obama still had confidence in CDC Director Tom Frieden. He said the President thought the Ebola outbreak was an 'understandably a concerning situation'. It was also revealed on Wednesday that President Obama denied the CDC's request to set up 18 regional disease-monitoring centers across the world when he came into office in 2008. There were five at the time, and now there are eight with two more in development, but none are in the Western African region hardest hit in this Ebola outbreak. Advertisement

Mrs Schuler said: 'I spoke to my son and he said that she works in that hospital and that she was exposed. Amber's mother has flown down to be with her.'

Her cousin, Ronda Vinson, posted on her Facebook page on Wednesday afternoon: 'People are not only IGNORANT but very HEARTLESS and CRUEL ....please PRAY for my cousin Amber yes MY BEAUTIFUL cousin GOD got you BABY GIRL I LOVE YOU.'

Mark Williamson, of Akron public school system, said Amber Vinson is a 2003 graduate of Firestone High School.

Miss Vinson was visiting relatives who work at Kent State University in Ohio this weekend. According to CBS, the nurse had flown to Ohio to plan her wedding for five days between October 8-13.

Three relatives, who were in contact with the nurse while she was potentially contagious, have been identified and were asked to stay off-campus for the next 21 days to self-monitor for signs while on paid leave.

One individual had reportedly already placed himself in self-quarantine.

Miss Vinson had reportedly been in Ohio to visit her mom and fiancé.

Dr Angela DeJulius told CBS: 'It’s important to note that the patient was not on the Kent State campus. She stayed with her family at their home in Tallmadge, Summit County and did not step foot on our campus.'

The nurse attended the university and graduated in 2008.

Her exact whereabouts would take some time to be determined, officials said.

Dallas Police patrol the entrance to The Village Bend East apartments where a nurse, Amber Jay Vinson, tested positive for Ebola after caring for 'patient zero' Thomas Duncan

Police investigate at the apartment community where the registered nurse lives. She tested positive for Ebola in the early hours of Wednesday

The Frontier Airlines plane that Amber Vinson flew from Cleveland to Dallas on Monday, rests at a terminal at Cleveland Hopkins International Airport today

The CDC said on Wednesday that Ebola-stricken nurses, Miss Vinson and Miss Pham, spent extended periods of time with Duncan while he was highly contagious and suffering from a great deal of vomiting and diarrhea.

It is not clear how she contracted the virus but Dr Frieden said today that some health professionals had been doubling up on gowns and gloves out of fear of catching Ebola. However layers made the chance of contamination easier, he said.

The CDC was also 'intensively' assessing four other health workers who had come into contact with Mr Duncan.

Miss Vinson reported to Texas Presbyterian with a fever on Tuesday and was isolated within 90 minutes.

The preliminary Ebola test was run late on Tuesday at the state public health laboratory in Austin, and results were received at about midnight.

Health officials have interviewed Miss Vinson to identify any contacts or potential exposures and have said that those people will be monitored.

The woman lives alone and has no pets.

Decontamination was in progress in the apartment building of the second health care worker with Ebola

Workers in hazmat suits begin to decontaminate the female Ebola patient's apartment, covering the door with plastic sheeting

Dallas Mayor Mike Rawlings, left, at a news conference on Wednesday morning with Dallas County Judge Clay Jenkins (right). The mayor said things may get worse with Ebola before they get better

Miss Vinson's Dallas apartment in the 6000 block of apartment community, The Village Bend East was being decontaminated today.

FLYING IN THE FACE OF DANGER? CDC ALERTS PASSENGERS TO POSSIBLE EBOLA THREAT In a statement on Wednesday, the CDC said: 'The Centers for Disease Control and Prevention confirms that the second healthcare worker who tested positive last night for Ebola traveled by air October 13, the day before she reported symptoms. 'Because of the proximity in time between the evening flight and first report of illness the following morning, CDC is reaching out to passengers who flew on Frontier Airlines flight 1143 Cleveland to Dallas/Fort Worth on October 13. CDC is asking all 132 passengers on the Frontier Airlines flight (the flight route was Cleveland to Dallas Fort Worth and landed at 8.16pm CT) to call 1 800-CDC INFO (1 800 232-4636). After 1pm ET, public health professionals will begin interviewing passengers about the flight, answering their questions, and arranging follow up. Individuals who are determined to be at any potential risk will be actively monitored. The healthcare worker exhibited no signs or symptoms of illness while on flight 1143, according to the crew. Frontier is working closely with CDC to identify and notify passengers who may have traveled on the flight.' However, according to Flight-tracker, the plane was used for five additional flights on Tuesday before it was removed from service. Those flights include a return flight to Cleveland, Cleveland to Fort Lauderdale–Hollywood International Airport (FLL), FLL to Cleveland, Cleveland to Hartsfield–Jackson Atlanta International Airport (ATL), and ATL to Cleveland. Advertisement

Emergency responders surrounded the building and Dallas firefighters in hazmat suits were seen entering the home while it was still dark.

City officials said they had contacted all 330 apartments in the complex where Miss Vinson lives.

Sana Syad, spokesman for the city of Dallas, said efforts were being made to trace all people who had contact with the 29-year-old.

The nurse's car was located at the hospital and would be decontaminated later on Wednesday.

Ms Syad said residents were appreciative that they were being kept informed of what was happening.

'We want them to be aware that if they see people in hazmat suits they know what is going on,' she said. 'We are trying to get the message out as fast as possible.'

Syad said residents within a four-block radius of the latest victim's apartment were being alerted and given a leaflet warning them about the proximity of a victim carrying the Ebola virus.

The openness is in marked contrast to how authorities reacted when Mr Duncan was first diagnosed with very little information released to the public.

Residents at the apartment complex were handed flyers informing them about the spread of the disease.

Police distributed a single page to the hundreds of families living in the Green on the Village apartment complex in the west of the city.

A police mobile command unit was set up in a parking lot while police went door to door with the leaflets.

The information sheet, which listed facts about Ebola, was an attempt to quell fears among residents about the deadly virus.

The flier was headlined: 'This is an important message from the City of Dallas.'

It read: 'Please be advised that a health care worker who lives in your area has tested positive for Ebola. This individual is in the hospital and isolated.

Nurse Nina Pham, 26, was currently being treated for Ebola after becoming infected with the disease while caring for Mr Duncan at the Texas Health Presbyterian Hospital

Protect Environmental Haz-Mat emergency response team arrives at the Bend East apartment complex in The Village community where a second health care worker lives who tested positive for Ebola

A police incident command truck was set up in the Dallas neighborhood as the investigation began in the second healthcare worker diagnosed with Ebola

Health authorities were on the ground on Wednesday morning in the Dallas neighborhood where the second female Ebola patient lives, handing out information (pictured) to concerned residents

A member of the fire department decontamination team with an oxygen tank strapped to his back as he prepares to enter the apartment of a woman diagnosed with Ebola

'Precautions are already in progress to clean all known potential areas of contact to ensure public health.

'While this may be concerning, there is no ongoing danger to your health. The virus does not spread through casual contact.

'The City of Dallas is working closely with the Centers for Disease Control and Prevention, Dallas County, Dallas Independent Schools District and Community leaders to protect your health.'

Dallas County Judge Clay Jenkins told a news conference on Wednesday morning: 'No one wants to get this more right than our hospital... where this insidious disease has now attacked two of our own.'

He added that the nurse was 'a heroic person, a person who is dedicating her life to serving others'.

The city mayor, Mike Rawlings, warned the public that the Ebola crisis 'may get worse before it gets better'.

Dr Daniel Varga, who oversees Texas Presbyterian, said the crisis was 'unprecedented' but denied that the hospital had an institutional problem when it came to protecting their medical staff treating Ebola.

WHAT IS THE CDC DOING TO GET A HANDLE ON THE EBOLA CRISIS? CDC director Tom Frieden said on Tuesday that he regretted not bringing in a specialized emergency response team from his agency on the day that Ebola patient Thomas Duncan, 42, was diagnosed. He said: 'I wish we had put a team on the ground the day the first patient was diagnosed.' Some 75 medics in Dallas are being monitored for the slightest sign of the virus following nurse Nina Pham's diagnosis this weekend and a second diagnosis of nurse Amber Vinson, 29, today. Dr Frieden said on Tuesday that new guidelines would lower the number of people who have contact with Ebola patients. He said that health authorities still do not know how 26-year-old nurse Nina Pham was infected but they suspect a breach in the hospital's protocol. Immediate changes in care included bringing in a site manager who would oversee aspects of infection control - with a focus on how staff put on and take off protective clothing. The CDC on Tuesday also sent an emergency response team into the hospital. Advertisement

Health officials were unable to provide the exact time when the second healthcare worker presented with symptoms.

However officials seemed to say that the 76 employees who had treated Duncan were not currently going to work.

Another 48 people are being monitored after contact with Mr Duncan before he was hospitalized.

One man who had contact with Miss Pham is also being monitored in isolation at Texas Presbyterian.

The CDC said in a statement today: 'An additional health care worker testing positive for Ebola is a serious concern, and the CDC has already taken active steps to minimize the risk to health care workers and the patient.'

Nurse Nina Pham, 26, was also being treated for Ebola after becoming infected with the disease while caring for Mr Duncan at Texas Presbyterian.

Miss Pham, a Texas Christian University nursing school graduate, is in isolation at the same hospital.

Her condition improved after receiving a blood transfusion from Ebola-survivor Dr Kent Brantly.

The nurse was reportedly in good spirits and had spoken to her mother via Skype.

In a statement released by the hospital on Tuesday, she said: 'I'm doing well and want to thank everyone for their kind wishes and prayers.

'I am blessed by the support of family and friends and am blessed to be cared for by the best team of doctors and nurses in the world here at Texas Health Presbyterian Hospital Dallas.'

The 26-year-old was one of a team of 76 medical staff who cared for Mr Duncan, 42, after he was diagnosed with the virus following his arrival in the U.S. from Liberia.

One man, believed to be her boyfriend, is also in isolation after coming in contact with Miss Pham while she was potentially contagious. The nurse's dog, a King Charles Spaniel called Bentley, is also being monitored for Ebola symptoms.

Dallas police set up a command center in the early hours of Wednesday outside the second patient's apartment in Dallas

The second case of Ebola contracted at a U.S. hospital came as nurses at Texas Presbyterian angrily insisted there were no protocols in place for dealing with the virus - and claimed that no hospital in the country was prepared to deal with the deadly virus.

The director of the National Nurses Union RoseAnn DeMoro directly contradicted the CDC's initial claim that a breach in protocol led to the infection of Miss Pham as she treated Mr Duncan.

Ms DeMoro said: 'Our nurses are not protected, they're not prepared to handle Ebola or any other pandemics.

The second healthcare worker with Ebola was part of the team who treated Thomas Eric Duncan

'The protocols that should have been in place in Dallas were not in place and are not in place anywhere in the United States, as far as we can tell.'

Hazardous waste from Duncan was 'left to pile up to the ceiling in one room', according to the nursing organization.

Nurses were forced to use medical tape to secure openings in their flimsy garments, worried that their necks and heads were exposed as they cared for a patient with explosive diarrhea and projectile vomiting, said Deborah Burger of National Nurses United.

Despite wearing protective gear that included gowns, gloves, masks and face shields while caring for Mr Duncan, Miss Pham became the first person to contract the disease in the U.S.

Director of the Centers for Disease Control and Protection (CDC) Dr Thomas Frieden has blamed a 'breach in protocol' of infection control lead Miss Pham to catch Ebola.

Mr Duncan arrived in Texas from Liberia on September 20. He began showing symptoms of Ebola three days after his arrival and was admitted to Texas Presbyterian Hospital on September 28. He died on October 8.

Presbyterian's chief clinical officer, Dr Dan Varga, said all staff had followed CDC recommended precautions – 'gown, glove, mask and shield' – while treating Mr Duncan.

On Monday, the CDC said that a critical moment may have come when Miss Pham took off her equipment.

An immediate review has been launched into the procedures and equipment used by healthcare workers.

Dr Frieden added that the case 'substantially' changes how medical staff approach the control of the virus, adding that: 'We have to rethink how we address Ebola control, because even a single infection is unacceptable.'

Ms Pham was diagnosed after admitting herself to hospital on Friday when her temperature spiked - one of the first symptoms of the deadly virus.

Her treatment has included a blood transfusion from recovered Ebola patient, Dr Kent Brantly, 33, and she is receiving experimental drug brincidofovir, or CMX001.

It was the third time Dr Brantly has donated blood to an Ebola victim after medics discovered he had the same blood type as previous patient Dr Nick Sacra and NBC cameraman Ashoka Mukpo, who is still being treated.

Ebola, a hemorrhagic fever which has no proven cure, has killed more than 4,000 people in West Africa since an outbreak that began in March.

The World Health Organization has called the outbreak 'most severe acute health emergency in modern times'.