WASHINGTON: A Texas nurse who was the second US health care worker infected with Ebola while caring for a Liberian patient left the hospital later Tuesday, her spokesman said.

Amber Vinson was declared cured of the virus last week by Emory University Hospital in Atlanta, Georgia, and is expected to make a statement to reporters upon her release.

She will not take questions, spokesman Steven Jumper said.

Her colleague Nina Pham, who also worked in the intensive care unit of Texas Health Presbyterian Hospital Dallas, was treated for Ebola at the National Institutes of Health Clinical Center in Bethesda, Maryland and was released on Friday.

Both became infected while caring for a Liberian man, Thomas Eric Duncan, who was diagnosed with Ebola in Texas after flying to the United States from his native Liberia, the country hardest hit by West Africa’s Ebola epidemic. He died on Oct. 8.

Ebola has killed more than 4,900 people and infected more than 10,000 since the beginning of the year, according to the World Health Organization.

Vinson’s story sparked alarm across the United States after the Centers for Disease Control and Prevention said she flew on a domestic airplane from Texas to Ohio and back, and reported a low-grade fever before boarding the flight home.

The CDC cleared her for travel at the time — about a day before she was diagnosed with Ebola — but said later she should not have been traveling on a commercial airliner.

Vinson’s family hired a high profile Washington lawyer, Billy Martin, after issuing a statement saying they were “troubled by some of the negative public comments and media coverage that mischaracterize Amber and her actions.” “In no way was Amber careless prior to or after her exposure to Mr. Thomas Eric Duncan. She has not and would not knowingly expose herself or anyone else,” it said.

The release of Vinson leaves just one patient in US hospital care for Ebola, doctor Craig Spencer, at Bellevue Hospital in New York.

More than 5,000 additional health care workers are needed to fight Ebola in the three most affected countries in West Africa, the president of the World Bank said Tuesday.

Jim Yong Kim said he is worried about where those health care workers can be found given the Ebola fear factor. The World Bank president spoke in Ethiopia alongside UN Secretary-General Ban Ki-moon and African Union chairwoman Nkosazana Dlamini-Zuma.

Ban said the transmission of the virus continues to outpace the international community’s response. He appealed for African Union member states not to impose Ebola-related travel restrictions or close their borders.

“We need to have a steady stream of health care workers from Africa coming into the three affected countries. The head of the UN Mission for Ebola Emergency Response, David Nabarro, has told us that we need at least 5,000 health workers from outside the region,” Jim said.

“Right now, I’m very much worried about where we will find those health care workers. With the fear factor going out of control in so many places, I hope health care professionals will understand that when they took their oath to become a health care worker it was precisely for moments like this,” he said.

Dlamini-Zuma said African Union states have pledged to send more than 2,000 health care workers into West Africa. She did not say when the workers would arrive.

Australia is suspending entry visas for people from Ebola-affected countries in West Africa in an attempt to keep out the disease.

The government is canceling and refusing non-permanent or temporary visas held by people who are not yet traveling, and new visa applications will not be processed. Permanent visa holders who have yet to arrive in Australia must submit to a 21-day quarantine before departure.

The countries most severely hit by the current outbreak are Liberia, Sierra Leone and Guinea.

Airport checks have identified more than 800 people who entered Australia from West Africa and who could have been in Ebola-stricken areas, but none has required a hospital visit after arriving.

Immigration Minister Scott Morrison told Parliament on Monday that “The government’s systems and processes are working to protect Australians.” Ebola vaccine trials are set to start in Switzerland this week after receiving the green light from the country’s authorities, the World Health Organization said Tuesday.

Swiss regulators announced they would allow trials of an experimental vaccine made by Britain’s GlaxoSmithKine, and tests on some 120 individuals were set to get under way at the CHUV hospital in Lausanne this week, the WHO said.

“This marks the latest step toward bringing safe and effective Ebola vaccines for testing and implementation as quickly as possible,” the UN’s health agency said in a statement.

There is no licensed treatment or vaccine for the deadly Ebola virus, which has killed nearly 5,000 people in the outbreak centered in west Africa.

The experimental GSK vaccine is one of two considered particularly promising by WHO.

Called ChAd3, it is based on a genetically modified chimpanzee adenovirus and trials have already begun in Mali, Britain and the United States, the WHO said.

“The trial will test the safety of the vaccine and its capacity to induce an immune response,” it said.