Texas lab worker on cruise tests negative for Ebola

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Texas lab worker on cruise tests negative for Ebola
DALLAS, TX - OCTOBER 15: Emergency vehicles escort an ambulance on the tarmac at Love Field Airport October 15, 2014. The ambulance had reportedly delivered Amber Vinson, a health care worker, to an air ambulance. According to reports, Vinson, had contracted the Ebola virus and had taken a commercial Frontier Airlines flight from Cleveland, Ohio to Dallas, Texas, a day before become symptomatic. (Photo by Stewart F. House/Getty Images)
Amber Joy Vinson, 2nd Dallas nurse with Ebola, traveled to Ohio to visit family, plan wedding http://t.co/AfQQEcnh4h http://t.co/YP5oI0j9Iv
WASHINGTON, DC - OCTOBER 17: Paige Victoria, 23, of Cleveland, Ohio, and Jeff Hulbert of Annapolis, Maryland, (obscured in back) hold up signs in front of the White House on October 17, 2014 in Washington, D.C. Hulbert is protesting the entry of Ebola into the country through air travel. 'There should be a temporary travel ban on visitors from infected regions until medical infrastructure can get up to speed,' said Hulbert. (Photo by Allison Shelley/Getty Images)
Jeff Hulbert from Annapolis, Maryland, dressed in a protective suit and mask holds a poster demanding for a halt of all flights from West Africa,as he protests outside the White House in Washington, DC on October 16, 2014. Top US health officials faced a grilling Thursday by lawmakers infuriated over the nation's fumbling response to the Ebola outbreak, as the Obama administration scrambles to contain the disease's spread. Centers for Disease Control (CDC) director Thomas Frieden has become the most prominent target of the criticism, which has mounted as it emerged that a second Texas health care worker infected with the deadly disease was allowed to board a commercial flight despite reporting a low-grade fever. AFP PHOTO/MLADEN ANTONOV (Photo credit should read MLADEN ANTONOV/AFP/Getty Images)
Twilette Miller, a nurse arriving from Dayton, Ohio, and concerned about Ebola reports, wears a precautionary surgical mask at Dulles International Airport October 16, 2014, in Sterling, Virginia, outside Washington, DC. Some schools in Ohio and Texas closed Thursday amid fears that students or staff had been exposed to a nurse who had Ebola infection during an airline flight. The US Centers for Disease Control has reached out to 132 people who were on the same October 13 flight as Amber Vinson, but said there was an extremely low risk that anyone was infected. AFP PHOTO/Paul J. Richards (Photo credit should read PAUL J. RICHARDS/AFP/Getty Images)
DALLAS, TX - OCTOBER 15: An air ambulance carrying Amber Vinson takes off from Love Field Airport October 15, 2014. According to reports, Vinson, a healthcare worker, had contracted the Ebola virus and had taken a commercial Frontier Airlines flight from Cleveland, Ohio to Dallas, Texas, a day before become symptomatic. (Photo by Stewart F. House/Getty Images)
WASHINGTON, DC - OCTOBER 16: White House Press Secretary Josh Earnest takes questions from the media during his daily briefing in the Brady Briefing Room, October 16, 2014 in Washington, DC. Secretary Earnest spoke about the two health care workers who were infected with the Ebola virus in Texas. (Photo by Mark Wilson/Getty Images)
This 2010 photo provided by tcu360.com, the yearbook of Texas Christian University, shows Nina Pham, 26, who became the first person to contract the disease within the United States. Records show that Pham and other health care workers wore protective gear, including gowns, gloves, masks and face shields and sometimes full-body suits when caring for Thomas Eric Duncan. (AP Photo/Courtesy of tcu360.com)

Nina Pham (Instagram)

DALLAS, TX - OCTOBER 12: A man dressed in protective hazmat clothing walks towards an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
Twilette Miller, a nurse arriving from Dayton, Ohio, and concerned about Ebola reports, wears a precautionary surgical mask at Dulles International Airport October 16, 2014, in Sterling, Virginia, outside Washington, DC. Some schools in Ohio and Texas closed Thursday amid fears that students or staff had been exposed to a nurse who had Ebola infection during an airline flight. The US Centers for Disease Control has reached out to 132 people who were on the same October 13 flight as Amber Vinson, but said there was an extremely low risk that anyone was infected. AFP PHOTO/Paul J. Richards (Photo credit should read PAUL J. RICHARDS/AFP/Getty Images)
Passengers at Frontier gate at Hopkins now wearing masks http://t.co/kBn0hhZhQZ
This is Amber Vinson, the #ebola patient that flew from #CLE to #Texas after visiting #Akron http://t.co/wBoZM9Hvr1 http://t.co/RGSvcA6l3Q
Family confirms, #Dallas nurse Nina Pham is 2nd patient with #Ebola... #PrayersforNina http://t.co/dTXi5SPZVW http://t.co/u4slPTn6US
#NinaPham identified as Dallas nurse with #Ebola http://t.co/3p3AFlxp42 http://t.co/L4Ho8zSHuM
DALLAS, TX - OCTOBER 12: Workers with hazmat company CG Environmental Cleaning Guys prepare a tarp to block the view of media as they prepare to enter an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: A man dressed in protective hazmat clothing leaves after treating the front porch and sidewalk of an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: No trespassing signs and warning tape mark the apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: Dallas police setup a barrier after a hazmat vehicle entered the alley behind the apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: A man dressed in protective hazmat clothing walks towards an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: A Dallas police officer sets up a barrier after a hazmat vehicle entered the alley behind the apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: A man dressed in protective hazmat clothing treats the front porch of an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: Two workers with hazmat company CG Environmental Cleaning Guys stand in the alley behind an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: A man dressed in protective hazmat clothing treats the sidewalk in front of an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: A worker with hazmat company CG Environmental Cleaning Guys hangs a tarp blocking view of the apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: Brad Smith with the hazmat company CG Environmental Cleaning Guys talks with the media outside of an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: G.C. Williford, Battalion Chief for the Dallas Fire Department, talks with fire department personell outside an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: Police officers stand near a barrel containing waste material (L) that was removed from the apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: Police officers stand outside an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: Brad Smith with the hazmat company CG Environmental Cleaning Guys talks with the media outside of an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: A Dallas police officer responds to media questions as hazmat company CG Environmental Cleaning Guys begins setup at the apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: Brad Smith (C) with hazmat company CG Environmental Cleaning Guys directs an employee outside of the apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: Volunteers pass out flyers for the Dallas County Health and Human Services department near an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: A barrel containing waste material that was removed from the apartment where a second person diagnosed with the Ebola virus resides sits on the lawn on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: G.C. Williford, Battalion Chief for the Dallas Fire Department, enters an apartment where a second person has been diagnosed with the Ebola virus on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: A barrel containing waste material that was removed from the apartment where a second person diagnosed with the Ebola virus resides stis on the lawn on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: A woman passes out flyers for the Dallas County Health and Human Services department near an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: Volunteers pass out flyers for the Dallas County Health and Human Services department near an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
DALLAS, TX - OCTOBER 12: A barrel labeled with biohazardous waste sits in front of an apartment where a second person has diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)
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(Reuters) - A Dallas hospital lab worker who spent much of a cruise holiday in isolation after possible exposure to Ebola has tested negative for the disease, and in Texas some of the dozens of people still being monitored were expected to be cleared on Sunday and Monday.

The Carnival Magic docked in the port of Galveston, Texas after a week-long cruise that included being denied docking by Belize and Mexico because of the presence of the woman on board.

The precautions taken over the Texas lab worker reflected anxiety over the spread of Ebola.

Three cases of the disease have been diagnosed in the United States, and dozens of people are being monitored having been exposed to the three patients.

The worst outbreak on record of the virus, which is spread by contact with bodily fluids of sick people, has killed more than 4,500 people, mostly in the West African countries of Liberia, Sierra Leone and Guinea.

Liberian President Ellen Johnson Sirleaf urged stronger international action to bring the epidemic under control on Sunday, saying the disease is unleashing an economic catastrophe that will leave a "lost generation" of young West Africans.

The lab worker who was being monitored aboard the cruise liner worked at the Texas Health Presbyterian Hospital where a Liberian man, Thomas Eric Duncan, was treated for Ebola.

The worker, who has not been named, did not have contact with Duncan but was being monitored as she might have come in contact with test samples from Duncan. Two nurses who treated Duncan, who died on Oct. 8, have contracted the disease.

Texas state authorities said 14 people had been cleared from an Ebola watch list. On Sunday and Monday, more were expected to end 21 days of monitoring for fever and other symptoms. The incubation period for the virus is up to 21 days.

They could include Duncan's fiancee, Louise Troh, her 13-year-old son and two other people who have been in mandatory quarantine at an undisclosed location in Dallas.

In all, 145 people with "contacts and possible contacts" with the virus were being monitored, the Texas Department of State Health Services said in a statement on Saturday. The dates when the 145 people began monitoring varies.

U.S. President Barack Obama sought to put the extent of the disease in the United States in perspective in his weekly radio address on Saturday.

"What we're seeing now is not an 'outbreak' or an 'epidemic' of Ebola in America," he said. "This is a serious disease, but we can't give in to hysteria or fear."

MISTAKES

A series of Ebola scares has hit the country since Duncan, who fell ill in September while visiting Texas, was diagnosed. Americans' faith in the medical system and in its disease prevention ability was jolted by early missteps in his case.

In a public letter on Saturday night, Texas Health Resources Chief Executive Barclay Berdan acknowledged that the Texas Health Presbyterian Hospital where Duncan first went, made mistakes, including initially not diagnosing Ebola.

Berdan said aggressive actions since then ensured that the hospital was a safe place, and that outside experts would be consulted to determine how two nurses became infected.

Nurse Amber Vinson is being treated at Atlanta's Emory University Hospital, while her colleague Nina Pham is being treated at the National Institutes of Health outside Washington.

Anthony Fauci, director of the U.S. National Institute of Allergy and Infectious Diseases, said he had a long conversation Saturday night with Pham.

"She's in good spirits," Fauci told Fox News Sunday. Asked whether she would recover, Fauci said, "I'm feeling good about the fact that she's progressing very well."

People who had contact with the nurses or Duncan are being monitored, while some 800 passengers who flew with Vinson on a trip she made to Ohio before being diagnosed, as well as those on subsequent flights on the same planes, have been contacted by Frontier Airlines, it said on Saturday.

The Ohio Department of Health strengthened its recommended Ebola quarantine protocols to limit travel by those required to have their health condition monitored locally or report it to officials. Ohio said its vigilance was meant to exceed CDC recommendations.

Obama, who has been criticized over his administration's handling of Ebola, held a flurry of meetings this week and on Friday appointed Ron Klain, an experienced Washington lawyer, to oversee efforts to contain the disease.

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