Amber Vinson, 2nd Texas nurse to contract Ebola, released today

A nurse who fuelled Ebola fears by flying to Cleveland after being infected by her dying patient in Dallas was released Tuesday from a hospital isolation unit, where doctors defended her as a courageous and passionate front-line caregiver.

Another nurse, held for days against her will in a medical tent in New Jersey after volunteering in West Africa, was in an undisclosed location in Maine, objecting to quarantine rules as overly restrictive.

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While world leaders appeal for more doctors and nurses on the front lines of the Ebola epidemic, health care workers in the United States are finding themselves on the defensive.

Lawyers now represent both Amber Vinson, who contracted the virus while caring for a Liberian visitor to Texas, and Kaci Hickox, who is challenging the mandatory quarantines that some states have imposed on anyone who came into contact with Ebola victims.

World Bank President Jim Yong Kim said Tuesday that at least 5,000 more health workers are needed in Liberia, Sierra Leone and Guinea to fight the epidemic. Kim was in Ethiopia with United Nations Secretary-General Ban Ki-moon, who has spoken out against mandatory quarantines for health care workers, and said Ebola-related travel restrictions and border closings are not the answer.

Vinson was cleared to fly

Dr. Bruce Ribner, an infectious disease expert who oversaw Vinson's recovery at Emory University Hospital, said fellow medical workers "deeply admire Ms. Vinson's care and courage in caring for patients with serious communicable diseases."

But Vinson's trip home to join her bridesmaids for wedding preparations was one of several moves by doctors and nurses that may have exposed others in the United States. In Ohio alone, 163 people were still being monitored Tuesday because of contact or potential contact with Vinson in a bridal shop and on the airplanes she travelled in.

N.J. Gov. Chris Christie said voluntary stay-at-home measures were obviously insufficient, since even doctors and nurses had moved around in public before getting sick. He was among the first to announce mandatory 21-day quarantines for anyone who had contact with possibly infected people.

Vinson, 29, was infected while caring for Thomas Eric Duncan, who died at Texas Health Presbyterian Hospital Dallas on Oct. 8. She inserted catheters, drew blood, and dealt with Duncan's body fluids, all while wearing protective gear.

Ribner said her doctors in Atlanta don't have any knowledge of how she got infected in Dallas. Neither would he release any details about her treatment, or whether certain drugs are proving more effective. "The honest answer is we're not exactly sure," he said.

But Emory University Hospital spokeswoman Holly Korschun later confirmed that Vinson received blood plasma from Ebola survivor Kent Brantley, and said Ebola survivor Nancy Writebol also donated her plasma, but it wasn't ultimately needed.

Ebola is only contagious when people who carry the virus get sick, and Vinson didn't show symptoms before flying to Ohio on Oct. 10. She reported her temperature to the Centers for Disease Control and Prevention, as required, on Oct. 13, and was cleared to fly back to Dallas. The next day, she developed a temperature, and on Oct. 15, she tested positive for Ebola.

Hickox will be quarantined at home

Another nurse, Nina Pham, also was infected by Duncan, and was released Oct. 24 from the National Institutes of Health.

Vinson didn't take any questions at the Emory news conference. Instead, she read a statement thanking God, her relatives and her doctors, and asked "that we not lose focus on the thousands of families who labour under the burden of this disease in West Africa."

Hickox, the Doctors Without Borders volunteer, was staying meanwhile in an "undisclosed location," said Steve Hyman, one of her lawyers. Maine health officials announced that she will be quarantined at home for 21 days after the last possible exposure to the disease, following the state's health protocols.

But Hyman said he expected her to remain in seclusion for the "next day or so" while he discusses her situation with Maine health officials. Hyman said the state should follow the Centers for Disease Control and Prevention guidelines, which require only monitoring, not quarantine, for health care workers who show no symptoms after treating Ebola patients.

"She's a very good person who did very good work and deserves to be honoured, not detained, for it," he said.